Calculators
Free online calculators for dates, percentages, finance, measurements and everyday planning. Enter the requested values, review the assumptions and compare scenarios before relying on a result.
Age Calculator
Calculate your exact age in years, months, days.
BMI Calculator
Calculate adult body mass index using metric or imperial units.
Check Friend's Age
Find your friend's exact age, next birthday, and fun details instantly.
Compound Interest Calculator
Project principal growth with regular contributions, compounding frequency and duration.
Currency Converter
Convert currencies using current reference exchange rates.
Discount Calculator
Calculate sale price, amount saved and combined sequential discounts.
DPI & PPI Calculator
Calculate print size, pixel density or required pixels from dimensions and viewing assumptions.
EMI Calculator
Calculate EMI with amortization schedule and detailed report.
Freelance Hourly Rate Calculator
Calculate your ideal freelance hourly rate.
Image Aspect Ratio Calculator
Simplify an aspect ratio and calculate matching width or height without stretching.
Media Duration Calculator
Add durations from multiple local audio or video files and display the total runtime.
Mortgage Calculator
Estimate monthly mortgage payments and total interest.
Overtime Pay Calculator
Estimate regular and overtime gross pay from hours, base rate and multiplier.
PayPal Fee Calculator
Estimate PayPal fees and net earnings.
Percentage Calculator
Calculate percentage with 5 different calculation modes.
Profit Margin Calculator
Calculate profit, margin and markup.
ROI Calculator
Calculate return on investment, net return and annualized ROI from cost, value and duration.
Salary to Hourly Calculator
Convert annual salary into monthly, weekly and hourly pay.
Savings Goal Calculator
Estimate the regular contribution needed to reach a savings goal with optional interest.
Share Age Result
Share your age insights with friends in a beautiful way.
Stripe Fee Calculator
Estimate Stripe fees and your net payout.
Tax Calculator
Calculate tax, subtotal and total amounts instantly.
Time Zone Converter
Convert a date and time between world time zones.
Unit Converter
Convert length, weight, temperature, area and data units.
Video Bitrate Calculator
Estimate bitrate from file size and duration or calculate a target bitrate for a size limit.
Video Resolution & Aspect Calculator
Calculate matching video dimensions, simplified ratios and common resolution comparisons.
Working Days Calculator
Count weekdays between two dates with optional excluded holiday dates.