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Free Unit Converter Online

Convert length (km↔miles), weight (kg↔lbs), and temperature (°C↔°F) instantly. 20+ units, no signup, fully private.

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How to Use the Unit Converter

1

Select a category

Choose Length, Weight, or Temperature at the top.

2

Enter a value and pick units

Type your number, choose the source unit and target unit from the dropdowns.

3

Read the instant result

The converted value appears immediately. Use ⇄ to swap units.

Frequently Asked Questions

How many km is 1 mile?

1 mile = 1.609344 kilometers. Conversely, 1 kilometer = 0.621371 miles. Select Length → Mile → Kilometer and enter 1 to verify instantly.

How many kg is 1 pound?

1 pound = 0.453592 kilograms. 1 kilogram = 2.20462 pounds. Select Weight → Pound → Kilogram and enter your value for an instant result.

How do I convert Celsius to Fahrenheit?

Formula: °F = (°C × 9/5) + 32. So 0°C = 32°F, 37°C (body temp) = 98.6°F, 100°C = 212°F. Use the Temperature tab for instant conversions.

How do I convert Fahrenheit to Celsius?

Formula: °C = (°F − 32) × 5/9. So 32°F = 0°C, 98.6°F = 37°C. Select Temperature → Fahrenheit → Celsius for instant conversion.

How many feet are in a meter?

1 meter = 3.28084 feet. 1 foot = 0.3048 meters. Select Length → Meter → Foot and enter your value.

How many ounces are in a kilogram?

1 kilogram = 35.274 ounces. 1 ounce = 0.0283495 kilograms. Use the Weight tab with Kilogram → Ounce.

Is data sent anywhere?

No. All conversions run locally in your browser. Nothing is transmitted to any server.

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