Age Calculator
Find an exact age in years, months and days.
No account required
Free online calculators, converters and generators
Browse calculators, converters, image tools, generators and writing tools by topic, or search the full directory. Each page explains what its tool does and how it works.
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All 24 tools are listed below.
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Date & Time
4 toolsDate Calculator
Add or subtract days, weeks, months and years from a date.
Days Between Dates Calculator
Count calendar days, weeks, weekdays and weekends between dates.
Business Days Calculator
Count workdays with optional supported holiday calendars.
Percentages & Math
3 toolsPercentage Calculator
Calculate percentages, proportions and percentage change.
Percentage Increase Calculator
Measure the percentage increase from one value to another.
Percentage Decrease Calculator
Measure the percentage decrease from one value to another.
Money
5 toolsMortgage Calculator
Estimate mortgage payments, housing costs and amortization.
Loan Calculator
Estimate payments, interest and early payoff savings.
Salary Calculator
Convert gross pay across seven common pay periods.
Compound Interest Calculator
Estimate compound growth with contributions.
Fuel Cost Calculator
Estimate fuel use and trip cost across common units.
Conversions
4 toolsUnit Converter
Convert length, mass, volume, area, speed and time units.
cm to Inches Converter
Convert centimetres and inches with optional feet-and-inches results.
kg to lb Converter
Convert kilograms and pounds with optional stones-and-pounds results.
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin temperatures.
Images
4 toolsImage Compressor
Reduce image file size locally.
Image Resizer
Resize an image without changing its proportions.
Image Format Converter
Convert images between JPEG, PNG and WebP.
QR Code Generator
Create a QR code locally from text or a URL.
Security
3 toolsSecure Password Generator
Generate a strong password locally in your browser.
Secure PIN Generator
Generate a random numeric PIN locally in your browser.
Password Strength Checker
Check basic password-strength signals locally.
Writing & Productivity
1 toolWord Counter
Count words and characters locally.