Fast, Accurate Online Calculators

Free calculators for finance, loans, health, and everyday math. Built for quick decisions on mobile and desktop.

BMI Calculator

Calculate your Body Mass Index and understand your weight status

Calculate your daily calorie needs for weight loss with personalized TDEE and timeline predictions

Calculate your monthly mortgage payments, including property tax and insurance

Estimate monthly payments and total costs for personal loans

Calculate car loan payments including trade-in value and sales tax

Calculate compound interest growth with regular contributions over time

Calculate sales tax rates, before-tax and after-tax prices for your purchases

Calculate tips and split bills easily with friends and family

Convert your hourly wage to an equivalent annual salary and compare

Calculate your Grade Point Average based on course credits and grades

Calculate the duration between two dates in years, months, and days

Count words, characters, and estimate reading time for your text

Plan retirement, evaluate financial health, compare payoff paths, and run investment growth scenarios.

Track BMI, calorie deficits, and pregnancy timelines with clear assumptions and practical guidance.

Compare mortgage, personal, auto, student-loan, and credit-card payoff scenarios before you commit.

Everyday utility tools for percentages, dates, tips, age math, word counts, and color conversions.

Use current inputs, not rough guesses. Small input errors can change the result a lot.

Run at least two scenarios so you can compare outcomes before you decide.

Recheck results whenever rates, dates, income, or expenses change. For walkthroughs, visit our Learn section.