Category
Calculators
Financial, health, math, date and everyday calculators that run entirely in the browser.
30 toolsBMI Calculator
Calculate Body Mass Index from height and weight in metric or imperial units.
Percentage Calculator
Find percentages, percentage change, and what percent one number is of another.
Age Calculator
Compute exact age in years, months, weeks, and days from a date of birth.
Loan Calculator
Estimate monthly payments, total interest, and payoff for any loan.
Mortgage Calculator
Calculate home loan payments including principal, interest, taxes, and insurance.
Compound Interest Calculator
Project investment growth with compounding over time and contributions.
Tip Calculator
Calculate tip amount and split the total bill among multiple people.
Discount Calculator
Find sale price and amount saved from an original price and discount percent.
Sales Tax Calculator
Add sales tax to a price or extract tax from a gross amount.
Calorie Calculator
Estimate daily calorie needs for maintenance, loss, or gain.
BMR Calculator
Calculate Basal Metabolic Rate to estimate resting calorie burn.
TDEE Calculator
Compute Total Daily Energy Expenditure from BMR and activity level.
Body Fat Calculator
Estimate body fat percentage using the US Navy method measurements.
Ideal Weight Calculator
Suggest a healthy weight range based on height, age, and gender.
Due Date Calculator
Estimate a pregnancy due date from the last menstrual period.
Ovulation Calculator
Predict fertile windows and ovulation days from cycle data.
Pregnancy Calculator
Track pregnancy progress, week count, and key milestones.
GPA Calculator
Compute grade point average from course grades and credit hours.
Grade Calculator
Calculate final or weighted grades and the score needed to pass.
Fraction Calculator
Add, subtract, multiply, and simplify fractions.
Scientific Calculator
Full-function calculator with trig, logs, exponents, and constants.
Date Calculator
Add or subtract days from a date and find the span between two dates.
Hours Calculator
Calculate total hours and minutes between two times for timesheets.
Time Duration Calculator
Measure elapsed time between two date-times in multiple units.
Countdown Calculator
Count down the days, hours, and minutes until any target date.
Paycheck Calculator
Estimate take-home pay after taxes and common deductions.
Salary Calculator
Convert pay between hourly, weekly, monthly, and annual rates.
Sleep Calculator
Suggest bedtimes or wake times based on 90-minute sleep cycles.
Random Number Generator
Generate random numbers within a custom range with options.
Standard Deviation Calculator
Compute mean, variance, and standard deviation for a data set.