Unit Converter
Free unit converters for length, weight, temperature, volume, time, and cooking measurements. Pick the one you need.
What is a Unit Converter?
A unit converter translates a measurement from one unit to another using a fixed conversion factor. The two most common measurement systems are metric (meters, kilograms, Celsius) used by most of the world, and imperial (feet, pounds, Fahrenheit) used primarily in the United States.
Whether you're converting recipe measurements, checking luggage weight limits, or translating international weather forecasts, a unit converter gives you an accurate result instantly — no manual math required.
How to Convert Units
- 1 Identify the units. Determine which unit you're converting from and which you're converting to (e.g., centimeters to inches).
- 2 Find the conversion factor. Look up the factor for that unit pair. For example: 1 cm = 0.3937 in, 1 kg = 2.2046 lbs, 1 mile = 1.6093 km.
- 3 Multiply. Multiply your value by the conversion factor. For example, 10 cm × 0.3937 = 3.937 inches.
- 4 Verify. Check that the result makes sense — a larger unit should give a smaller number and vice versa.
All Unit Converters
CM to Inches Converter
Convert centimeters to inches and back. 1 cm = 0.3937 inches. Perfect for height, screen sizes, and clothing measurements.
- Length
- cm ↔ inches
- 1 cm = 0.3937 in
KG to LBS Converter
Convert kilograms to pounds and back. 1 kg = 2.2046 lbs. Ideal for body weight, luggage limits, and shipping.
- Weight
- kg ↔ lbs
- 1 kg = 2.2046 lbs
Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius using the standard formula (°F - 32) × 5/9. Works for weather, cooking, and science.
- Temperature
- °F ↔ °C
- (°F - 32) × 5/9
Miles to KM Converter
Convert miles to kilometers and back. 1 mile = 1.6093 km. Useful for road trips, running distances, and travel.
- Distance
- mi ↔ km
- 1 mi = 1.6093 km
Feet to Meters Converter
Convert feet to meters and back. 1 foot = 0.3048 meters. Great for construction, real estate, and height.
- Length
- ft ↔ m
- 1 ft = 0.3048 m
Cups to ML Converter
Convert US cups to milliliters. 1 US cup = 236.59 mL. Essential for following international recipes.
- Volume
- cups ↔ mL
- 1 cup = 236.59 mL
Hours to Minutes Converter
Convert hours (including decimals) to minutes. 1 hour = 60 minutes. Handy for timesheets, payroll, and scheduling.
- Time
- hrs ↔ min
- Decimal hours
Cooking Converter
Convert between cups, tablespoons, teaspoons, milliliters, fluid ounces, pints, quarts, and gallons. All kitchen measurements in one tool.
- Kitchen
- 8 unit types
- US & metric
Which Unit Converter Should I Use?
Length & height: Use CM to Inches for smaller measurements (height, screen sizes, clothing) or Feet to Meters for larger measurements (room dimensions, construction).
Distance & travel: Use Miles to KM for road trips, running distances, and international travel.
Weight: Use KG to LBS for body weight, luggage, shipping, and gym weights.
Temperature: Use Fahrenheit to Celsius for weather, cooking temperatures, and science.
Cooking & recipes: Use Cups to ML for a quick volume conversion or the Cooking Converter for a full kitchen measurement tool (cups, tbsp, tsp, oz, pints, quarts, gallons).
Time: Use Hours to Minutes for timesheets, payroll calculations, and scheduling with decimal hours.
Common Conversion Factors
| Conversion | Factor | Type |
|---|---|---|
| 1 cm → inches | 0.3937 | Length |
| 1 inch → cm | 2.54 | Length |
| 1 foot → meters | 0.3048 | Length |
| 1 meter → feet | 3.2808 | Length |
| 1 mile → km | 1.6093 | Distance |
| 1 km → miles | 0.6214 | Distance |
| 1 kg → lbs | 2.2046 | Weight |
| 1 lb → kg | 0.4536 | Weight |
| °F → °C | (°F - 32) × 5/9 | Temperature |
| °C → °F | (°C × 9/5) + 32 | Temperature |
| 1 US cup → mL | 236.59 | Volume |
| 1 hour → minutes | 60 | Time |