Calculators
12 toolsPractical calculators for everyday life and finance. Compute BMI, age in years/months/days, mortgage payments, loan totals, percentages, tips, GPAs, discounts, and compound interest — all in your browser.
BMI Calculator
Calculate Body Mass Index from weight and height. Metric or imperial.
Age Calculator
Calculate age in years, months, days, and total weeks from a birthdate.
Percentage Calculator
Solve any percentage problem: X% of Y, % change, increase/decrease.
Tip Calculator
Calculate tips, totals, and per-person splits in one place.
Mortgage Calculator
Estimate monthly mortgage payments and total interest over the loan term.
Loan Calculator
Compute monthly payment, total interest, and total cost of any loan.
GPA Calculator
Calculate weighted GPA from grades and credit hours.
Discount Calculator
Calculate sale price, amount saved, and final price with tax.
Compound Interest
Project investment growth with monthly contributions and compounding.
Unit Price
Compare unit prices to find which package is the better buy.
Time Card
Add up daily start/end times, subtract breaks, and compute total pay.
Scientific Calculator
Full-featured scientific calculator with trig, logs, and exponents.