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Roth IRA Calculator
Tax-free retirement growth projections
Credit Card Payoff
Pay off your balance faster
Compound Interest
See how your money grows over time
Mortgage Calculator
Monthly payments & total interest
Body Fat Calculator
Estimate your body fat percentage
401(k) Calculator
Project employer-matched retirement savings
Debt Snowball
Pay off debts smallest-first
Paycheck Calculator
Gross to net pay across pay periods
Salary Calculator
Annual, monthly, weekly & hourly rates
Calorie Calculator
Daily calories for your goals
BMI Calculator
Check your Body Mass Index
LLM API Cost Calculator
Estimate spend across GPT, Claude & Gemini
Percentage Calculator
All three percentage formulas
Age Calculator
Exact age in years, months & days
AI Token Counter
Count tokens for GPT, Claude & Gemini
Retirement Calculator
Will your savings last through retirement?
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Convert anything instantly
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AI-Powered Productivity