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Common Conversion Questions

How do I convert centimeters to inches (cm to inches)?﹢

Divide centimeters by 2.54. Formula: inches = cm ÷ 2.54. Example: 30 cm ÷ 2.54 = 11.811 inches. Try cm to inches converter →

How do I convert kg to lbs (kilograms to pounds)?﹢

Multiply kilograms by 2.20462. Formula: lbs = kg × 2.20462. Example: 70 kg × 2.20462 = 154.324 lbs. Try kg to lbs converter →

How do I convert Celsius to Fahrenheit (°C to °F)?﹢

Use the formula: °F = (°C × 9/5) + 32. Example: 100°C = (100 × 1.8) + 32 = 212°F. 0°C = 32°F, 37°C = 98.6°F. Try Celsius to Fahrenheit converter →

How do I convert mm to inches (millimetres to inches)?﹢

Divide millimetres by 25.4. Formula: inches = mm ÷ 25.4. Example: 100 mm ÷ 25.4 = 3.937 inches. Try mm to inches converter →

How do I convert lbs to kg (pounds to kilograms)?﹢

Multiply pounds by 0.453592. Formula: kg = lbs × 0.453592. Example: 150 lbs × 0.453592 = 68.039 kg. Try lbs to kg converter →

How do I convert Fahrenheit to Celsius?﹢

Use the formula: °C = (°F − 32) × 5/9. Example: 98.6°F → (98.6 − 32) × 5/9 = 37°C. 32°F = 0°C, 212°F = 100°C. Try Fahrenheit to Celsius converter →

How do I convert kilometers to miles?﹢

Multiply kilometres by 0.621371. Formula: miles = km × 0.621371. Example: 10 km × 0.621371 = 6.214 miles. Try km to miles converter →

How do I convert meters to feet?﹢

Multiply metres by 3.28084. Formula: feet = m × 3.28084. Example: 5 m × 3.28084 = 16.404 feet. Try meters to feet converter →

How do I convert inches to cm (inches to centimeters)?﹢

Multiply inches by 2.54. Formula: cm = inches × 2.54. Example: 12 inches × 2.54 = 30.48 cm. Try inches to cm converter →

How do I convert inches to mm (inches to millimetres)?﹢

Multiply inches by 25.4. Formula: mm = inches × 25.4. Example: 6 inches × 25.4 = 152.4 mm. Try inches to mm converter →

Free Online Unit Converter — Centimeters to Inches, kg to lbs, Celsius to Fahrenheit & More

TopUnitConverters.com is a free, instant unit conversion tool covering every major measurement category. Whether you need to convert centimeters to inches, kg to lbs, mm to inches, Celsius to Fahrenheit, kilometers to miles, or meters to feet — just pick a category above, enter your value, and get the result immediately.

Popular conversions include: cm to inches (divide by 2.54), kilograms to pounds (multiply by 2.20462), degrees Celsius to Fahrenheit (°F = °C × 9/5 + 32), lbs to kg (multiply by 0.453592), inches to mm (multiply by 25.4), Fahrenheit to Celsius (°C = (°F − 32) × 5/9), and inches to centimeters (multiply by 2.54).

We also support currency converter calculations, time conversions, speed, area, volume, pressure, energy, data storage, and engineering units. All conversions use the International System of Units (SI) as the global standard, with full support for imperial and US customary units. No sign-up needed — just fast, accurate unit conversion.