All 55 Calculators
Free online calculators for finance, health, business, education, and everyday math. Instant results — no signup required.
Finance
(16)Credit Card Payoff Calculator
Pay off credit card debt faster & save interest
Debt Snowball & Avalanche Calculator
Compare Snowball vs Avalanche debt payoff strategies
Loan Calculator
Calculate loan payments & amortization
Compound Interest Calculator
Calculate investment growth over time
Mortgage Calculator
Calculate monthly mortgage payments
Salary Calculator
Hourly to salary converter & raise calculator
Inflation Calculator
Calculate inflation impact on purchasing power
Auto Loan Calculator
Calculate car loan payments & total cost
Retirement Calculator
Project retirement savings & monthly income
Income Tax Calculator
Estimate federal & state income taxes
Net Worth Calculator
Track assets, debts & total wealth
Emergency Fund Calculator
Find your ideal emergency fund size
Savings Goal Calculator
How long to save for any goal
Rent vs Buy Calculator
Should you rent or buy a home?
Subscription Cost Calculator
How much do your subscriptions cost?
Latte Factor Calculator
What your daily habits really cost
Business
(10)Business Valuation Calculator
3-method business valuation tool
Freelance Rate Calculator
Find your ideal freelance hourly rate
1099 vs W-2 Calculator
Compare employee vs contractor pay
Break-Even Calculator
Find your break-even point
SaaS Pricing Calculator
Model SaaS pricing & revenue
Cash Flow Calculator
Track operating CF, burn rate & runway
Profit Margin Calculator
Calculate gross, operating & net margins
ROI Calculator
Calculate ROI for investments, marketing & real estate
Invoice Calculator
Calculate invoice totals with tax & discounts
AI Automation ROI Calculator
Is AI worth it for your business?
Creator
(4)TDEE Calculator
Total Daily Energy Expenditure + macros
Body Fat Calculator
3-method body fat % calculator
Ideal Weight Calculator
4-formula ideal weight calculator
BMI Calculator
Calculate your Body Mass Index
Due Date Calculator
Calculate pregnancy due date & milestones
Calorie Calculator
Calculate daily calorie needs & macros
Macro Calculator
Calculate protein, carbs & fat macros for your goal
Water Intake Calculator
How much water should you drink daily?
Sleep Calculator
Find your best bedtime and wake-up time
One Rep Max (1RM) Calculator
Estimate your max lift from reps
Percentage
(6)Education
(2)Date & Time
(2)Utility
(5)Random Number Generator
Generate random numbers, roll dice & flip coins
Password Generator
Generate secure random passwords
AI API Cost Calculator
Compare AI model API costs
Unit Converter
Convert length, weight, temperature & more
Can My PC Run AI? — Local LLM Calculator
Check which AI models fit your GPU