Calculators built to get the numbers right, not just to exist
Niche utility calculators for home improvement, hobbies, pets, and automotive decisions — each one using the actual formula behind the question, not a rounded-up rule of thumb.
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Material calculators for renovation and building — paint, wallpaper, drywall, flooring, bricks, rebar, roofing, stairs, underfloor heating and wiring — from your actual room and house dimensions, not a rough guess.
16 calculatorsPrecise calculators for hobbies where a wrong number ruins the result: soap-making, epoxy resin, 3D printing, aquariums and spirit dilution.
5 calculatorsCalculators for feeding and caring for your dog, based on veterinary formulas rather than a generic feeding chart.
2 calculatorsCalculators for trips and car decisions: fuel and charging cost, tire size and trailer towing.
4 calculatorsCalculators for AI-tool spending: subscriptions, API models and gateways for your actual workload.
3 calculatorsVPS plan matching across real plans from 10 providers — by country, vCPU, RAM, storage, bandwidth and IPv4 — instead of comparing pricing pages one by one.
1 calculatorsKitchen calculators instead of eyeballing it: air fryer conversion, coffee ratio, pizza dough and turkey roasting time.
4 calculatorsPersonal finance calculators with the formula's source and every assumption stated: mortgage, debt and freelance rate.
3 calculatorsCalculators for grades and study: weighted average, per-subject breakdown, test-score conversion and the grade you still need.
1 calculatorsCalculators for training: running pace and race-time predictions, one-rep max and working weights.
2 calculators