What can't you find?

Need a tool? Calculator? Music? Bedtime story?
Tell us. We'll try to build it.

or explore

100+ free tools · $0 to use · no signup

We don't have that yet.

But we can make it. Tell us what you need.

How it works

1

Tell us what you need

Calculator, tool, song, story — anything.

2

We build it

AI and humans, working together.

3

Free to use

No signup. No paywall. Ad-supported.

What The Hive Makes

22 free calculator suites across 9 domains. Every tool runs in your browser — no login, no paywall, no data collection.

Trades & Construction

Tools for the job site and the shop floor.

  • WoodCalc — board feet, miter angles, crown molding, dovetails
  • HomeCalc — concrete, deck boards, tile, drywall, stair stringers
  • CircuitCalc — Ohm's law, LED resistor, voltage divider, color codes
  • MEPCalc — MEP ROM estimator, scope gap matrix, healthcare adder

Garden & Animals

For the yard, the hive, and the stable.

  • GardenCalc — soil volume, mulch, plant spacing, fertilizer NPK
  • BeeCalc — varroa mites, hive population, honey yield, winter feed
  • EquineCalc — horse weight, hay rations, medication dosing, pasture

Fitness & Health

Performance and physiology, no gym required.

  • RunCalc — pace, race predictor, VO2max, heart rate zones
  • LiftCalc — one rep max, Wilks score, plate loading, volume
  • BabyCalc — due date, ovulation, fetal growth, pregnancy weight gain

Kitchen & Brewing

From recipe scaling to fermentation math.

  • CookCalc — recipe scaler, grams to cups, pan conversion, cost per serving
  • BrewCalc — ABV, IBU bitterness, mash water, priming sugar

Money & Math

Statistics, betting math, and Islamic finance.

  • StatCalc — sample size, confidence interval, p-value, chi-square
  • BetCalc — parlay payout, implied probability, Kelly criterion, arbitrage
  • ZakatCalc — Zakat, Murabaha, Sukuk yield, halal inheritance (Faraid)

Science & Auto

Chemistry, 3D printing, and what's under the hood.

  • ChemCalc — molarity, dilution, pH, stoichiometry, reaction yield
  • PrintCalc — filament usage, print cost, layer height, infill strength
  • TireCalc — tire size comparison, speedometer correction, offset
  • AutoCalc — HP/torque, compression ratio, gear ratio, quarter-mile
  • EVCalc — EV charging time, cost, range impact, battery degradation
  • GolfCalc — handicap index, club distance, slope adjustment, putting break

Mid-Atlantic Construction Resources

Free reference tools and in-depth guides for contractors, MEP engineers, and awarding bodies working across Delaware, Pennsylvania, New Jersey, Maryland, and Virginia.

Topics include prevailing wage compliance, contractor licensing, stormwater permitting, healthcare facility licensure, and permit routing for 30+ jurisdictions. See the tools directory and guides.