How do I convert centimeters to inches?

Multiply centimeters by 0.393701 to get inches. For example, 10 cm = 10 × 0.393701 = 3.93701 inches. Or divide by 2.54 since 1 inch = 2.54 cm.

How do I convert meters to feet?

Multiply meters by 3.28084 to get feet. For example, 2 meters = 2 × 3.28084 = 6.56168 feet. Or use the conversion factor: 1 meter = 3.28084 feet.

What is the difference between metric and imperial systems?

Metric system uses base-10 units (meters, centimeters, kilometers). Imperial system uses various units (inches, feet, yards, miles) with non-decimal relationships. Most countries use metric, while the US primarily uses imperial.

How accurate are the conversions?

Our converter uses precise conversion factors. For example, 1 inch = exactly 2.54 cm, 1 meter = exactly 3.28084 feet. Results are accurate to 6 decimal places for precision.

Can I convert between any length units?

Yes, our converter supports all common length units: millimeters, centimeters, meters, kilometers (metric) and inches, feet, yards, miles (imperial). Simply select your unit and enter the value.

Why are there so many decimal places?

Precise conversions often result in decimals. For practical use, you can round to 2-4 decimal places. The calculator shows up to 6 decimals for maximum precision when needed.

Length Converter

Convert length across metric and imperial systems accurately. Support for millimeters, centimeters, meters, kilometers, inches, feet, yards, and miles.

Converter

Result

Millimeter (mm): 0 mm
Centimeter (cm): 0 cm
Meter (m): 0 m
Kilometer (km): 0 km
Inch (in): 0 in
Foot (ft): 0 ft
Yard (yd): 0 yd
Mile (mi): 0 mi

Formula & Guide

Conversion Formulas

M

Metric to Imperial

Imperial = Metric × Conversion Factor

Multiply metric value by conversion factor

I

Imperial to Metric

Metric = Imperial ÷ Conversion Factor

Divide imperial value by conversion factor

Formula Variables

1 cm

Centimeter

= 0.393701 inches = 0.01 meters

1 m

Meter

= 3.28084 feet = 1.09361 yards = 0.001 kilometers

1 km

Kilometer

= 0.621371 miles = 1000 meters

1 in

Inch

= 2.54 cm = 0.083333 feet

1 ft

Foot

= 12 inches = 0.3048 meters = 0.333333 yards

1 mi

Mile

= 5280 feet = 1.60934 kilometers

Step-by-Step Scenario

Example Scenario

Value

5 feet

Target Unit

meters

1

Identify Conversion Factor

1 foot = 0.3048 meters

2

Apply Conversion Formula

Meters = Feet × 0.3048
Meters = 5 × 0.3048

Meters = 1.524

Additional Examples

Centimeters to Inches

Input: 25 cm

Result

25 × 0.393701 = 9.8425 inches

Kilometers to Miles

Input: 10 km

Result

10 × 0.621371 = 6.21371 miles

Characteristics of Length Conversion

Precise Factors

All conversions use exact conversion factors. For example, 1 inch = exactly 2.54 cm, ensuring accurate results.

Multiple Units

Supports all common length units: metric (mm, cm, m, km) and imperial (in, ft, yd, mi) for comprehensive conversion.

Instant Results

Real-time conversion as you type. All units are calculated simultaneously for easy comparison.

Bidirectional

Convert from any unit to any other unit. No need to convert to a base unit first - direct conversions available.

Important Notes

Conversion factors are exact and standardized. 1 inch = exactly 2.54 cm by international agreement.
For practical measurements, round results to 2-4 decimal places. The calculator shows up to 6 decimals for precision.
Metric system is base-10, making conversions easier. Imperial system uses various conversion factors.
When converting large distances, kilometers and miles are more practical than meters and feet.
For construction and engineering, precise conversions are essential. Always verify critical measurements.

Frequently Asked Questions

Find answers to common questions about length conversion.