Free Online Unit Converter
The STAAMS Unit Converter is a free online measurement converter for quickly converting common length, distance and weight units. It is designed for everyday calculations and works directly in your web browser without requiring an application or manual formulas.
Convert popular measurements such as cm to inches, inches to cm, meters to feet, feet to meters, kg to pounds, pounds to kg, km to miles and miles to km.
You can also use the converter for cm to feet, feet to cm, inches to feet, feet to inches, inches to meters, meters to inches, yards to meters, meters to yards and meters to cm.
Popular Unit Conversions
These are some of the most commonly needed metric and imperial conversions for everyday measurements, travel, fitness, shopping, education, construction and professional work.
Common Unit Conversion Reference
Use this quick reference to understand some of the most frequently used metric and imperial conversion relationships.
| Conversion | Conversion Rule |
|---|---|
| 1 inch to cm | 1 inch = 2.54 cm |
| 1 cm to inches | 1 cm ≈ 0.3937007874 inches |
| 1 foot to meters | 1 foot = 0.3048 meters |
| 1 meter to feet | 1 meter ≈ 3.280839895 feet |
| 1 kilogram to pounds | 1 kg ≈ 2.204622622 lb |
| 1 pound to kilograms | 1 lb = 0.45359237 kg |
| 1 kilometer to miles | 1 km ≈ 0.6213711922 miles |
| 1 mile to kilometers | 1 mile = 1.609344 km |
| 1 yard to meters | 1 yard = 0.9144 meters |
CM to Inches Converter
The cm to inches converter is useful when converting metric measurements into imperial measurements. Centimeters are commonly used in most metric countries, while inches are widely used in the United States and in many product, screen and clothing measurements.
One centimeter is approximately equal to 0.3937007874 inches. For example, 10 cm is approximately 3.937 inches and 100 cm is approximately 39.37 inches.
CM to Inches Formula
Inches = Centimeters × 0.3937007874
Inches to CM Converter
Use the inches to cm converter when you need to convert an imperial measurement into centimeters. This is useful for height, screen sizes, product dimensions, clothing measurements and many other everyday measurements.
Inches to CM Formula
Centimeters = Inches × 2.54
One inch is exactly equal to 2.54 centimeters.
Meters to Feet and Feet to Meters
Meters and feet are commonly used for measuring height, rooms, buildings, construction projects, property dimensions and distances. The STAAMS converter lets you switch between meters and feet instantly.
Meters to Feet Formula
Feet = Meters × 3.280839895
Feet to Meters Formula
Meters = Feet × 0.3048
KG to Pounds and Pounds to KG
Kilograms and pounds are widely used for body weight, fitness, shipping, luggage, product specifications and other weight measurements.
KG to Pounds Formula
Pounds = Kilograms × 2.204622622
Pounds to KG Formula
Kilograms = Pounds × 0.45359237
KM to Miles and Miles to KM
Kilometers and miles are commonly used to describe road, travel and geographic distances. The converter makes it easy to switch between metric and imperial distance measurements.
KM to Miles Formula
Miles = Kilometers × 0.6213711922
Miles to KM Formula
Kilometers = Miles × 1.609344
CM to Feet and Feet to CM
Converting centimeters to feet is particularly useful for height measurements and when comparing metric measurements with imperial measurements.
CM to Feet Formula
Feet = Centimeters × 0.03280839895
Feet to CM Formula
Centimeters = Feet × 30.48
Inches to Feet and Feet to Inches
Inches and feet are both imperial length units. Twelve inches make one foot.
Inches to Feet Formula
Feet = Inches ÷ 12
Feet to Inches Formula
Inches = Feet × 12
Inches to Meters and Meters to Inches
The inches-to-meters conversion is useful when converting smaller imperial measurements into metric measurements.
Inches to Meters Formula
Meters = Inches × 0.0254
Meters to Inches Formula
Inches = Meters × 39.37007874
Yards to Meters and Meters to Yards
Yards are commonly used in sports, fabric measurements, landscaping and some distance measurements. Meters are the standard metric equivalent.
Yards to Meters Formula
Meters = Yards × 0.9144
Meters to Yards Formula
Yards = Meters × 1.093613298
Other Supported Unit Conversions
The STAAMS Unit Converter also supports these common measurement conversions:
- Centimeters to inches
- Inches to centimeters
- Centimeters to feet
- Feet to centimeters
- Inches to feet
- Feet to inches
- Inches to meters
- Meters to inches
- Meters to feet
- Feet to meters
- Yards to meters
- Meters to yards
- Meters to centimeters
- Kilometers to miles
- Miles to kilometers
- Kilograms to pounds
- Pounds to kilograms
When to Use a Unit Converter
A unit converter can save time whenever measurements need to be converted between different systems. Students can use it for mathematics and science, travelers can convert distances, shoppers can compare product dimensions, and professionals can quickly convert measurements used in their work.
Everyday Uses
- Height conversion
- Body weight conversion
- Distance conversion
- Construction measurements
- Property dimensions
- Product dimensions
- Shopping measurements
- Travel distance conversion
- Fitness and weight measurements
- Education and homework calculations
- Engineering and technical measurements
Accurate Metric and Imperial Conversions
The converter uses standard conversion factors for the supported units. Some conversions are exact, while others produce decimal results that are rounded for convenient display.
For example, 1 inch equals exactly 2.54 centimeters and 1 foot equals exactly 0.3048 meters. The displayed result may contain decimal places to provide useful precision for everyday calculations.
Frequently Asked Questions
How do I convert cm to inches?
Enter the centimeter value, select centimeters as the starting unit and inches as the target unit. The result is calculated instantly.
How do I convert inches to cm?
Select inches as the starting unit and centimeters as the target unit, then enter your value. One inch equals exactly 2.54 centimeters.
How do I convert meters to feet?
Select meters and feet in the converter and enter the number of meters. The equivalent feet value appears instantly.
How do I convert feet to meters?
Select feet as the starting unit and meters as the target unit. Enter your value to calculate the equivalent measurement in meters.
How do I convert kg to pounds?
Select kilograms as the starting unit and pounds as the target unit. Enter the weight to calculate the equivalent value in pounds.
How do I convert pounds to kg?
Select pounds as the starting unit and kilograms as the target unit. Enter the weight and the equivalent kilogram value will be calculated.
How do I convert km to miles?
Select kilometers and miles, enter the distance and the converter will calculate the equivalent distance in miles.
How do I convert miles to km?
Select miles as the starting unit and kilometers as the target unit. Enter the distance to calculate the equivalent kilometers.
How do I convert cm to feet?
Select centimeters as the starting unit and feet as the target unit. Enter your centimeter value to calculate the equivalent measurement.
Is the STAAMS Unit Converter free?
Yes. The STAAMS Unit Converter is free to use online.
What units can I convert?
You can convert common length, distance and weight units including centimeters, inches, feet, meters, kilometers, miles, yards, kilograms and pounds.
Does the converter work on mobile phones?
Yes. The converter is responsive and works on smartphones, tablets and desktop computers.