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160 free calculators built for founders, farmers, healthcare workers, and gamers. No account. No upsell. Just calculate.
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Browse 160 calculators across finance, health, agriculture, legal, and gaming. Find what you need in seconds.
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We built the calculator library we wished existed.
Every startup, farm, hospital, and game studio hits the same wall: they need a calculation but don’t want to build a spreadsheet or pay a monthly subscription for a tool they’ll use once.
LaunchHub started as a side project to fix that. Today we offer 160 free calculators covering everything from compound interest and farm loan repayment to IV drip rates, IELTS scores, and castle upgrade costs.
No fluff. No watermarks. No account required.
“The only calculator site I’ve kept bookmarked for more than a month.”
Founders & Startups
Burn rate, runway, APY, APR, cost of capital, break-even units, ad spend ROI.
Farmers & Growers
Feed costs, gestation periods, fish stocking density, harvest yield per acre.
Healthcare & Fitness
IV drip rate, calorie needs, lean body mass, IELTS scores, baby milestones.
Gamers & Studios
Loot box ROI, dungeon key costs, castle upgrade paths, co-op score multipliers.
What will you calculate?
Finance & Banking
Compound interest, APY, APR, debt-to-equity, cash yield, cost of capital, dividend tax, FICA tax, 529 savings.
Loans & Real Estate
Interest-only loan, HELOC payment, construction loan, farm loan repayment, car ownership total cost.
Health & Medical
IV drip rate, IVF success rate, calorie calculator, lean body mass, Glasgow Coma Scale, iron supplement dosage.
Agriculture & Livestock
Livestock feed cost, fish pond density, gestation calculators, farm profit per acre, beehive honey production.
Legal & Compliance
Labor law penalty, immigration bond, jury selection cost, anti-SLAPP motion, annulment eligibility.
Gaming & Virtual Worlds
In-game loot box ROI, dungeon key cost, castle upgrade, co-op mode score, battleground rating.