13 free tools

Calculators

Free, no sign-up, no watermarks. Files are processed privately and never stored.

Age CalculatorCalculate your exact age in years, months, and days from your date of birth. 100% in your browser — free, no sign-up.
BMI CalculatorCalculate your Body Mass Index from weight and height, in metric or imperial. 100% in your browser — free, no sign-up.
Date CalculatorCount the days between two dates, or add and subtract days, weeks, months, and years from a date. 100% in your browser — free, no sign-up.
Discount CalculatorWork out the sale price and how much you save from a price and a discount percentage. 100% in your browser — free, no sign-up.
Loan & Mortgage CalculatorCalculate monthly loan payments, total cost, and total interest from amount, rate, and term. 100% in your browser — free, no sign-up.
Mortgage CalculatorEstimate your true monthly mortgage payment — principal, interest, property tax, insurance, PMI, and HOA. 100% in your browser — free, no sign-up.
Percentage CalculatorWork out percentages: X% of Y, what percent X is of Y, and percentage change. 100% in your browser — free, no sign-up.
Rent vs Buy CalculatorCompare the real cost of buying a home vs renting over the years you plan to stay, with editable assumptions. 100% in your browser — free, no sign-up.
ROI CalculatorCalculate return on investment (ROI) and net return from a cost and final value, with optional annualized ROI. 100% in your browser — free, no sign-up.
Salary CalculatorConvert pay between hourly, daily, weekly, monthly, and annual. 100% in your browser — free, no sign-up.
Sales Tax CalculatorAdd sales tax to a price and see the tax amount and total from any tax rate. 100% in your browser — free, no sign-up.
Time CalculatorAdd or subtract days, hours, and minutes from a date-time, or find the exact duration between two times. 100% in your browser — free, no sign-up.
Tip CalculatorWork out the tip and total, and split the bill between any number of people. 100% in your browser — free, no sign-up.