Unit Converter
Convert length, weight, temperature, area, and volume with precision. Simple, fast, and accurate conversions for students and professionals.
Conversion Live
FROM
TO
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How to Use
- Quick Conversion: Enter value, converts instantly
- Swap Units: Click swap icon or button
- Categories: Switch between length, weight, temp, etc.
- Recent History: Click to reuse conversions
- Save Favorites: Star most-used conversions
Pro Tips
- Temperature: Special formulas for °C, °F, K
- Large Numbers: Scientific notation for 1M+ values
- Precision: Results rounded to 6 decimals
- Keyboard: Press Enter after typing
- Share: Copy conversions to clipboard
How to Convert Units
- Select a category (Length, Weight, Temperature, etc.)
- Choose the unit you're converting from and to
- Enter the value in the "FROM" box
- Result appears instantly in the "TO" box
- Use swap button to reverse the conversion
All conversions update in real-time as you type.
Understanding Unit Categories
- Length: Meter, foot, inch, kilometer, mile, etc.
- Weight: Kilogram, pound, ounce, gram, ton
- Temperature: Celsius, Fahrenheit, Kelvin (uses special formulas)
- Area: Square meter, acre, hectare, square foot
- Volume: Liter, gallon, cup, milliliter, cubic meter
- Time: Second, minute, hour, day, week, month, year
Each category uses precise conversion factors based on international standards.
Frequently Asked Questions
Is this unit converter free?
Yes, completely free! No hidden costs, no registration. Convert
unlimited units instantly.
Is my data stored?
No. All conversions happen locally in your browser. We do not store,
log, or transmit any values you enter. Your privacy is fully
protected.
How accurate are the conversions?
We use internationally recognized conversion factors. Results are
shown with up to 6 decimal places for maximum precision. Temperature
conversions use exact formulas.
How do temperature conversions work?
Temperature uses special formulas: °C to °F: (°C × 9/5) + 32, °F to
°C: (°F - 32) × 5/9, Kelvin adds/subtracts 273.15.
Can I save my favorite conversions?
Yes! Click the star icon next to recent conversions to save them as
favorites. They'll appear at the top of your history.
What is the "Multi-unit View" for?
When enabled, it shows your value converted to all units in the same
category at once. Perfect for comparing different units.