Unit Converter
A unit converter is a free online tool that converts measurements between different units β such as meters to feet, kilograms to pounds, and Celsius to Fahrenheit.
How to use Unit Converter
- Choose category β Select Length, Weight, Temperature, Area, or Volume.
- Enter value β Type the number you want to convert.
- Select units β Pick the from and to units β result appears instantly.
Key features
- Length, weight, temperature, area, volume
- Metric & imperial units
- Instant conversion
- Works offline
- Free and unlimited
Why Unit Conversion Matters
Different countries use different measurement systems. The US uses imperial (inches, pounds, gallons) while most of the world uses metric (centimeters, kilograms, liters). Recipes, engineering specs, travel plans, and shopping all require conversions. Manual conversion invites mistakes β our tool does it instantly and accurately.
Common Conversions
Length: 1 inch = 2.54 cm, 1 foot = 30.48 cm, 1 mile = 1.609 km. Weight: 1 pound = 0.4536 kg, 1 ounce = 28.35 g. Volume: 1 gallon = 3.785 liters, 1 cup = 236.6 ml. Temperature: Β°F = Β°C Γ 9/5 + 32. Area: 1 acre = 4046.86 mΒ², 1 hectare = 10,000 mΒ². Our tool handles all of these with precision.
Metric vs. Imperial
The metric system (SI) is used by 95% of the world. It's based on powers of 10, making it easy to convert within the system (1 km = 1000 m). The imperial system β used in the US, Myanmar, and Liberia β has odd conversion factors (1 mile = 5280 feet). This mismatch is why unit converters are essential for international communication.
Why Our Converter?
Our tool covers length, weight, temperature, area, and volume in one place, with instant conversion. It works on any device, requires no signup, and handles negative temperatures correctly. For business or personal use, it's the fastest way to get accurate conversions.
Pro tips
- For temperature, remember conversion is not just multiplication β offset matters
- Round only at the final step, not during conversion
- Double-check units when dealing with small quantities
- Bookmark this page for cooking and DIY projects
Common use cases
- Converting recipes between metric and imperial
- Engineering and DIY projects
- Travel planning (miles to km)
- Shopping internationally
- Science homework and study
Frequently asked questions
How many cm in an inch?+
1 inch = 2.54 centimeters.
How do I convert Celsius to Fahrenheit?+
Formula: Β°F = Β°C Γ 9/5 + 32.
Is the converter accurate?+
Yes β uses standard international conversion factors.
What categories are supported?+
Length, weight, temperature, area, and volume.
Is it free?+
Yes, 100% free.
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