https://redmoonconverters.com/blog Worked guides to the conversions and calculations behind cooking, building, brewing, making and more. en Mon, 12 Oct 2026 00:00:00 GMT https://redmoonconverters.com/blog/american-recipe-in-a-metric-kitchen-guide https://redmoonconverters.com/blog/american-recipe-in-a-metric-kitchen-guide Sticks of butter, a packet of yeast, 375°F and a 9×13 pan: one US cinnamon roll recipe taken through grams, yeast swaps, cup sizes, fan ovens and a smaller tin, in the order that works. Mon, 12 Oct 2026 00:00:00 GMT Paul Clark Baking Cooking Conversions https://redmoonconverters.com/blog/power-outage-generator-battery-planning-guide https://redmoonconverters.com/blog/power-outage-generator-battery-planning-guide List what must keep running, turn it into watts and watt-hours, then size a generator for the surge or a battery for the day. A worked winter-outage plan for one household. Mon, 12 Oct 2026 00:00:00 GMT Paul Clark Energy Home https://redmoonconverters.com/blog/pricing-handmade-goods-cost-fees-wholesale-guide https://redmoonconverters.com/blog/pricing-handmade-goods-cost-fees-wholesale-guide Candles, stickers, FDM and resin prints all price the same way: unit cost, a failure buffer, then marketplace fees grossed up on the sale price and a wholesale tier that has to work too. Mon, 12 Oct 2026 00:00:00 GMT Paul Clark Crafts Pricing 3D Printing https://redmoonconverters.com/blog/which-ingredients-to-weigh-baking-guide https://redmoonconverters.com/blog/which-ingredients-to-weigh-baking-guide Only 8 of the converter's 105 ingredients change density when you handle them, and only a handful of lines in a recipe punish a 15% error. How to spend your accuracy where it buys something. Wed, 12 Aug 2026 00:00:00 GMT Paul Clark Baking Cooking Conversions https://redmoonconverters.com/blog/led-resistor-headroom-vf-tolerance-guide https://redmoonconverters.com/blog/led-resistor-headroom-vf-tolerance-guide The resistor value is only half the answer. How much voltage you leave across the resistor decides whether a real LED lands near your target current or wanders 25% off it — and why the calculator has no box for parallel LEDs. Wed, 05 Aug 2026 00:00:00 GMT Paul Clark Electronics LED DIY https://redmoonconverters.com/blog/recipe-scaler-line-parsing-gotchas-guide https://redmoonconverters.com/blog/recipe-scaler-line-parsing-gotchas-guide The scaler reads one quantity per line and decides everything from the word that follows it. Here's what still gets left behind, why a comma-joined line only half-scales, and how to format a paste so every quantity lands. Wed, 29 Jul 2026 00:00:00 GMT Paul Clark cooking baking https://redmoonconverters.com/blog/timezone-overlap-edge-cases-half-hour-zones-guide https://redmoonconverters.com/blog/timezone-overlap-edge-cases-half-hour-zones-guide An overlap calculator is only as honest as its inputs and its grid. What happens to India's half-hour offset on an hourly band, why "EST" is wrong all summer, how a typo'd zone widens your overlap, and why today's answer isn't January's. Mon, 27 Jul 2026 00:00:00 GMT Paul Clark Remote Work Timezones Scheduling https://redmoonconverters.com/blog/cron-gotchas-dom-dow-timezones-dst-guide https://redmoonconverters.com/blog/cron-gotchas-dom-dow-timezones-dst-guide The day-of-month/day-of-week OR-trap, timezone and DST surprises, overlapping runs and the ranges that don't mean what you think — the cron mistakes that fire jobs on the wrong days, and how to catch them before production does. Wed, 15 Jul 2026 00:00:00 GMT Paul Clark Developer Tools DevOps Scheduling https://redmoonconverters.com/blog/equivalent-aperture-crop-sensor-depth-of-field-guide https://redmoonconverters.com/blog/equivalent-aperture-crop-sensor-depth-of-field-guide Crop factor changes more than focal length — it changes depth of field and light gathering too. Here's what 'equivalent aperture' really means, why your APS-C f/1.8 behaves like full-frame f/2.7, and where the analogy stops. Wed, 15 Jul 2026 00:00:00 GMT Paul Clark Photography Lens Sensor https://redmoonconverters.com/blog/tire-size-speedometer-odometer-error-guide https://redmoonconverters.com/blog/tire-size-speedometer-odometer-error-guide Fit taller or shorter tires and your speedo starts lying — reading low when you go bigger, high when you go smaller. Here's the simple ratio behind the error, how to calculate your true speed, and why your mileage and fuel economy drift too. Wed, 15 Jul 2026 00:00:00 GMT Paul Clark Cars Tires Conversions https://redmoonconverters.com/blog/coffee-extraction-sour-vs-bitter-guide https://redmoonconverters.com/blog/coffee-extraction-sour-vs-bitter-guide Sour, bitter or just flat? Learn how extraction actually works, what under- and over-extraction taste like, and the three dials — ratio, grind and contact time — that fix a bad cup. Tue, 14 Jul 2026 00:00:00 GMT Paul Clark Coffee Brewing Kitchen https://redmoonconverters.com/blog/how-to-pace-a-marathon-negative-splits-guide https://redmoonconverters.com/blog/how-to-pace-a-marathon-negative-splits-guide The most common way to ruin a marathon is starting too fast. Here's how to set a realistic goal pace from a shorter race, why negative splits win, and how to build a per-kilometre plan you can actually hold. Tue, 14 Jul 2026 00:00:00 GMT Paul Clark Running Fitness Racing https://redmoonconverters.com/blog/oversized-air-conditioner-short-cycling-guide https://redmoonconverters.com/blog/oversized-air-conditioner-short-cycling-guide An oversized AC cools the air fast but leaves the room clammy, wears out early and costs more to run. Here's why short cycling happens, how to spot it, and how to size a unit that's right instead of just big. Tue, 14 Jul 2026 00:00:00 GMT Paul Clark Construction HVAC Home https://redmoonconverters.com/blog/build-your-own-custom-unit-converter-guide https://redmoonconverters.com/blog/build-your-own-custom-unit-converter-guide Every unit converter, from kilometres to game currencies to lab reagents, runs on the same tiny idea: define one reference unit as 1 and express everything else against it. Here's how the factor method works and how to define your own units for workflows no off-the-shelf tool covers. Mon, 13 Jul 2026 00:00:00 GMT Paul Clark custom units https://redmoonconverters.com/blog/freelance-currency-fx-tax-take-home-guide https://redmoonconverters.com/blog/freelance-currency-fx-tax-take-home-guide A cross-border freelance invoice loses money at three separate stages — the payment processor, the exchange-rate spread, and your local tax — applied in an order that matters. Here's how to trace a headline number down to what really lands in your account. Mon, 13 Jul 2026 00:00:00 GMT Paul Clark freelance currency tax https://redmoonconverters.com/blog/hourly-rate-to-project-quote-guide https://redmoonconverters.com/blog/hourly-rate-to-project-quote-guide Why multiplying your hourly rate by an estimate produces a quote that quietly loses money, and how a revisions buffer, expense pass-through and profit margin turn a raw number into a project price you can actually deliver against. Mon, 13 Jul 2026 00:00:00 GMT Paul Clark freelance pricing https://redmoonconverters.com/blog/aquarium-water-gh-kh-ppm-dgh-dkh-guide https://redmoonconverters.com/blog/aquarium-water-gh-kh-ppm-dgh-dkh-guide Your test kit says 8 dKH, the fish profile wants 120 ppm, and the reef calculator asks for meq/L. They're all the same water measured three ways. Here's the single conversion factor that ties them together — and why GH and KH aren't interchangeable. Sun, 12 Jul 2026 00:00:00 GMT Paul Clark Pets Aquarium https://redmoonconverters.com/blog/bra-size-conversion-uk-us-eu-sister-sizes-guide https://redmoonconverters.com/blog/bra-size-conversion-uk-us-eu-sister-sizes-guide UK, US, EU, AU and JP bras label the same body with different numbers, and the band and cup aren't independent. Here's how the conversion actually works from two measurements — and why a sister size fixes a bra that's close but not quite. Sun, 12 Jul 2026 00:00:00 GMT Paul Clark Clothing Sizing Conversions https://redmoonconverters.com/blog/pg-vg-ratio-max-vg-diy-eliquid-guide https://redmoonconverters.com/blog/pg-vg-ratio-max-vg-diy-eliquid-guide Your nicotine base and flavour concentrates smuggle PG into every DIY e-liquid, so the highest VG you can hit is fixed before you add a drop of pure VG. Here's the arithmetic that decides it, and how to push the ceiling higher. Sun, 12 Jul 2026 00:00:00 GMT Paul Clark Vaping DIY https://redmoonconverters.com/blog/fertilizer-dilution-ppm-ec-guide https://redmoonconverters.com/blog/fertilizer-dilution-ppm-ec-guide A 6-2-4 fertilizer doesn't put 6, 2 and 4 into your tank. The P and K on the label are oxide forms that need converting, and PPM only means something once you know your tank volume and EC scale. Here's the full chain from bottle to root zone. Sat, 11 Jul 2026 00:00:00 GMT Paul Clark Gardening Hydroponics https://redmoonconverters.com/blog/resin-print-cost-per-print-guide https://redmoonconverters.com/blog/resin-print-cost-per-print-guide Resin pricing looks simple until supports and density get involved. Here's the real chain — model volume × density for weight, bottle price ÷ bottle size for cost per mL — and why the support buffer, not the resin brand, is what moves the number. Sat, 11 Jul 2026 00:00:00 GMT Paul Clark 3D Printing Resin https://redmoonconverters.com/blog/sticker-size-cost-per-sheet-guide https://redmoonconverters.com/blog/sticker-size-cost-per-sheet-guide Pixels only become inches once you fix a DPI, and the gaps between stickers — bleed plus kiss-cut margin — quietly shrink how many fit on a sheet. Both feed directly into your cost per sticker and the price you should list. Sat, 11 Jul 2026 00:00:00 GMT Paul Clark Crafts Business https://redmoonconverters.com/blog/3d-print-cost-pricing-estimate-guide https://redmoonconverters.com/blog/3d-print-cost-pricing-estimate-guide Filament is the cheap part. The real cost of a print is electricity, machine wear, failed prints and your own labour — here's how to add them all up and set a price that pays you. Fri, 10 Jul 2026 00:00:00 GMT Paul Clark 3D Printing Pricing https://redmoonconverters.com/blog/crochet-hook-size-conversion-guide https://redmoonconverters.com/blog/crochet-hook-size-conversion-guide Why the same hook has three different names, why UK numbers run backwards, how mm is the only measurement that matters, and how to match hook size to yarn weight without ruining your gauge. Fri, 10 Jul 2026 00:00:00 GMT Paul Clark Crafts Crochet https://redmoonconverters.com/blog/grow-light-distance-inverse-square-guide https://redmoonconverters.com/blog/grow-light-distance-inverse-square-guide Why a few inches of hang height changes your light intensity so drastically, how PPFD targets differ by growth stage, why lux meters mislead, and how to set canopy distance with confidence. Fri, 10 Jul 2026 00:00:00 GMT Paul Clark Gardening Grow Lights https://redmoonconverters.com/blog/font-size-units-px-pt-rem-em-guide https://redmoonconverters.com/blog/font-size-units-px-pt-rem-em-guide A plain-English guide to CSS font-size units — why pt is a print unit, how rem and em actually differ, the 62.5% trick, and how to convert any size to any other unit. Thu, 09 Jul 2026 00:00:00 GMT Paul Clark Design Typography https://redmoonconverters.com/blog/how-long-should-a-podcast-episode-be-guide https://redmoonconverters.com/blog/how-long-should-a-podcast-episode-be-guide Why episode length is set by format and where people listen, not by a magic number — plus how ad load eats content time and how to estimate MP3 file size from bitrate and duration. Thu, 09 Jul 2026 00:00:00 GMT Paul Clark Podcast Audio https://redmoonconverters.com/blog/how-much-fabric-do-i-need-yardage-guide https://redmoonconverters.com/blog/how-much-fabric-do-i-need-yardage-guide Why the same dress needs 30–50% more fabric on a narrow bolt, what 'with nap' really costs you, how pattern repeats add up, and how to estimate quilt top and backing yardage. Thu, 09 Jul 2026 00:00:00 GMT Paul Clark Crafts Sewing https://redmoonconverters.com/blog/eliquid-nicotine-mixing-guide https://redmoonconverters.com/blog/eliquid-nicotine-mixing-guide How DIY e-liquid mixing math works — nicotine dilution, the hidden PG your nic base and flavour concentrate already carry, and why some PG/VG targets simply aren't reachable. Wed, 08 Jul 2026 00:00:00 GMT Paul Clark Vaping DIY https://redmoonconverters.com/blog/pixels-to-physical-size-dpi-guide https://redmoonconverters.com/blog/pixels-to-physical-size-dpi-guide Why a pixel has no physical size until you attach a DPI, how to convert pixel dimensions to cm/mm/inches and back, and why bleed makes your print file bigger than the finished piece. Wed, 08 Jul 2026 00:00:00 GMT Paul Clark Design Print https://redmoonconverters.com/blog/sidechain-compression-timing-guide https://redmoonconverters.com/blog/sidechain-compression-timing-guide How to set sidechain attack and release in milliseconds from BPM and note divisions, why a fast attack and a beat-synced release create the pump, and how dotted and triplet values shift the feel. Wed, 08 Jul 2026 00:00:00 GMT Paul Clark Music Production Mixing https://redmoonconverters.com/blog/loop-length-bars-to-seconds-samples-guide https://redmoonconverters.com/blog/loop-length-bars-to-seconds-samples-guide Bars-to-seconds math looks like simple division, but compound time signatures redefine what a 'beat' even is — get that wrong and every trimmed loop drifts out of sync. Tue, 07 Jul 2026 00:00:00 GMT Paul Clark Music Production Sampling Producer https://redmoonconverters.com/blog/slow-cooker-instant-pot-oven-time-conversion-guide https://redmoonconverters.com/blog/slow-cooker-instant-pot-oven-time-conversion-guide The '1h oven = 4h high = 8h low = 20 min Instant Pot' rule of thumb only holds for one dish type. Stews, roasts, beans and rice each convert at a different ratio — here's why. Tue, 07 Jul 2026 00:00:00 GMT Paul Clark Cooking Slow Cooker Instant Pot https://redmoonconverters.com/blog/spice-blend-scaling-ratio-guide https://redmoonconverters.com/blog/spice-blend-scaling-ratio-guide Classic spice blends aren't a pinch of this and a dash of that — they're fixed ratios of parts. Scaling them by weight (not volume) is what makes a homemade blend taste consistent batch after batch. Tue, 07 Jul 2026 00:00:00 GMT Paul Clark Cooking Spices Baking https://redmoonconverters.com/blog/alcohol-abv-dilution-math-guide https://redmoonconverters.com/blog/alcohol-abv-dilution-math-guide Diluting a spirit to a target ABV isn't just 'add some water' — it's a mass-conservation equation, and skipping the contraction correction can put your final ABV off by half a point. Mon, 06 Jul 2026 00:00:00 GMT Paul Clark Cooking Alcohol https://redmoonconverters.com/blog/grain-bill-og-strike-water-math-guide https://redmoonconverters.com/blog/grain-bill-og-strike-water-math-guide Predicted original gravity, beer color, and strike water temperature aren't guesswork — they're three separate formulas, and getting any one input wrong (especially efficiency) throws off the whole recipe. Mon, 06 Jul 2026 00:00:00 GMT Paul Clark Brewing Beer https://redmoonconverters.com/blog/twitch-streamer-revenue-math-guide https://redmoonconverters.com/blog/twitch-streamer-revenue-math-guide A Tier 1 Twitch sub costs viewers $4.99, but the streamer doesn't see all of it — and bits, ads, and Prime subs each follow a completely different payout formula. Here's the real math. Mon, 06 Jul 2026 00:00:00 GMT Paul Clark Gaming Streaming https://redmoonconverters.com/blog/appliance-electricity-cost-guide https://redmoonconverters.com/blog/appliance-electricity-cost-guide Why wattage alone can't tell you what an appliance costs to run, the huge gap between always-on vampire loads and short heavy loads, and a worked comparison that shows which one actually wins on your monthly bill. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Energy Home https://redmoonconverters.com/blog/beekeeping-sugar-syrup-guide https://redmoonconverters.com/blog/beekeeping-sugar-syrup-guide Why beekeepers feed sugar syrup at all, the real difference between 1:1 and 2:1 mixes, and why weighing your sugar instead of measuring cups gets you a consistent batch every time. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Homestead Beekeeping https://redmoonconverters.com/blog/candle-making-wax-fragrance-guide https://redmoonconverters.com/blog/candle-making-wax-fragrance-guide Why the headspace you leave at the top of a vessel changes your wax total, why fragrance load is a percentage of wax weight (not total volume), and how to work out both correctly with a worked example. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Crafts Candle Making https://redmoonconverters.com/blog/canning-altitude-adjustment-guide https://redmoonconverters.com/blog/canning-altitude-adjustment-guide Water boils cooler as you climb, which quietly undermines home canning safety. Here's why USDA adjusts boiling-water processing time and pressure-canner PSI for altitude — with both official lookup tables and a worked example. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Cooking Canning Food Safety https://redmoonconverters.com/blog/chicken-feed-guide https://redmoonconverters.com/blog/chicken-feed-guide The rule-of-thumb feed rates for bantams, standard layers and meat birds, why cold weather and free-ranging change the math, and how to turn a daily rate into a monthly or yearly feed budget. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Homestead Chickens https://redmoonconverters.com/blog/contractor-rate-vs-salary-guide https://redmoonconverters.com/blog/contractor-rate-vs-salary-guide The self-employment tax gap, the health insurance you'd suddenly have to buy yourself, the 401(k) match you'd forfeit, and the unpaid gaps between contracts — why an identical hourly number means very different take-home, and where the '1.25-1.5x' rule of thumb actually comes from. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Freelance Business https://redmoonconverters.com/blog/ev-charging-cost-home-vs-public-guide https://redmoonconverters.com/blog/ev-charging-cost-home-vs-public-guide The real formula behind an EV charging bill — why $/kWh alone hides charging losses, demand charges and time-of-use rates, and how charger power (not battery size) sets your charging time. Worked example included. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Energy Electric Vehicles https://redmoonconverters.com/blog/fence-post-concrete-guide https://redmoonconverters.com/blog/fence-post-concrete-guide Two silent errors blow up fence-post concrete estimates: counting posts as length ÷ spacing instead of spacing + 1, and treating hole size as a linear number when volume actually scales with the radius squared. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Construction Fencing https://redmoonconverters.com/blog/fermentation-brine-salt-guide https://redmoonconverters.com/blog/fermentation-brine-salt-guide Salt percentage by weight is what actually keeps lacto-fermented vegetables safe and crisp. Here's why a tablespoon lies, how the brine and dry-salt methods differ, and the safe ranges for sauerkraut, pickles, kimchi, hot sauce and olives. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Cooking Fermentation https://redmoonconverters.com/blog/gear-ratio-tire-size-guide https://redmoonconverters.com/blog/gear-ratio-tire-size-guide Fitting larger tires without regearing throws off your speedometer, odometer, fuel economy math and cruise control — and quietly robs the engine of RPM. Here's the math behind both problems and the fix. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Cars Tires https://redmoonconverters.com/blog/generator-sizing-guide https://redmoonconverters.com/blog/generator-sizing-guide Motors like fridge compressors, sump pumps, and AC units draw a brief 2-3x surge on startup. Here's the one-motor rule for sizing a generator that survives that moment instead of stalling. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Energy Home https://redmoonconverters.com/blog/how-many-fish-aquarium-stocking-guide https://redmoonconverters.com/blog/how-many-fish-aquarium-stocking-guide Real aquarium stocking math — actual water volume, species bioload, filter turnover and schooling minimums — instead of the outdated inch-per-gallon rule. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Pets Aquarium Fish https://redmoonconverters.com/blog/how-much-hay-does-a-horse-eat-guide https://redmoonconverters.com/blog/how-much-hay-does-a-horse-eat-guide Why there's no single answer to how much hay a horse eats, the 1.5-3% of body weight rule equine nutritionists actually use, why horses need near-constant forage access, and how to turn a daily percentage into a real hay-buying budget. Sun, 05 Jul 2026 00:00:00 GMT Paul Clark Homestead Horses