Utilities
Area Converter
Convert m² ↔ ft², km² ↔ mi², hectare ↔ acre, plus cm², in², and yd². Private, fast, and client-side.
1 acre = 43,560 ft²
Exact SI/international definitions; everything runs client-side.
You might also find these tools useful
Handy companions for working with Text, QR Code and Images.
- Updated
Date Difference Calculator
Days, weeks, months between two dates.
- Popular
Fuel Cost Calculator
Trip fuel cost by mileage and gas price.
- Trending
Grade Calculator
Compute course grade from weighted components.
- Popular
GPA Calculator
Term & cumulative GPA (weighted/unweighted).
- Hot
Yes/No Decision
Fair coin-flip style decision helper.
- Popular
Percentage Calculator
Find X% of Y, percentage change, and differences.
- Trending
Fraction to Decimal
Convert between fractions, decimals, and percents.
- Hot
Mouse Click Speed Test
Clicks per second mini game.
- Popular
Typing Speed Test
Measure WPM typing speed and accuracy.
- Trending
Reaction Timer
Measure reflex speed and record results.
- Popular
Text → QR Code
Generate QR codes for text/URLs/Wi-Fi.
- Popular
URL → QR Code
Generate QR codes for website links.