Length Converter (mm, cm, m, km, in, ft, yd, mi)

Unit	mm	cm	m	km	in	ft	yd	mi
1 mm	1	0.1	0.001	0.000001	0.03937	0.003281	0.001094	0.0000006214
1 cm	10	1	0.01	0.00001	0.3937	0.03281	0.01094	0.000006214
1 m	1000	100	1	0.001	39.3701	3.28084	1.09361	0.0006214
1 km	1000000	100000	1000	1	39370.1	3280.84	1093.61	0.6214
1 in	25.4	2.54	0.0254	0.0000254	1	0.08333	0.02778	0.000015783
1 ft	304.8	30.48	0.3048	0.0003048	12	1	0.3333	0.0001894
1 yd	914.4	91.44	0.9144	0.0009144	36	3	1	0.0005682
1 mi	1609344	160934.4	1609.344	1	63360	5280	1760	1

Length Units Overview (mm, cm, m, km, in, ft, yd, mi)

1. Core Idea

Convert any length by routing through meters (SI base). Metric scales by powers of 10; imperial uses fixed exact factors (1 in = 25.4 mm).

2. Key Factors

1 cm = 10 mm
1 m = 100 cm
1 km = 1000 m
1 in = 25.4 mm

1 ft = 12 in
1 yd = 3 ft
1 mi = 5280 ft
1 mi = 1609.344 m

3. Quick Reference

From	Multiply By	To
mm → cm	0.1	cm
cm → mm	10	mm
in → cm	2.54	cm
mi → km	1.609344	km

4. 3-Step Example

Convert 5 ft 8 in to cm

Feet to inches: 5×12 + 8 = 68 in
Inches to cm: 68 × 2.54
= 172.72 cm

5. Uses

Engineering drawings, international product specs, height measurement, travel distances, construction layouts, manufacturing tolerances.

6. Accuracy & Tips

Keep exact inch → mm factor (25.4) for precision.
Chain imperial → metric via inches then meters.
Avoid rounding mid‑calculation for cumulative lengths.
Use scientific notation for very large distances.

7. More Examples

Input	Result
250 mm	25 cm
42 in	106.68 cm
3.5 km	3500 m
2 miles	3.218688 km

8. FAQ

Why is 25.4 mm exact?

International yard & pound agreement (1959) fixed the inch as exactly 25.4 mm.

Fast miles → km?

Multiply by 1.6 for a quick estimate; exact is 1.609344.

CM to Feet Converter – Centimeter to Feet, Formula, Table & FAQ

Use this free cm to feet converter to instantly convert centimeters to feet and feet+inches. Enter your value in centimeters and get the result in feet (decimal and feet+inches) with calculation steps, formula, and a handy conversion table. This tool is accurate, fast, and easy to use for students, professionals, and anyone needing quick length conversions.

How to Convert Centimeters to Feet

1 centimeter (cm) is equal to 0.0328084 feet. To convert cm to feet, divide the value in centimeters by 30.48.
feet = centimeters / 30.48

CM to Feet Formula

The formula for converting centimeters to feet is:
feet = cm ÷ 30.48

Examples

170 cm = 170 ÷ 30.48 = 5.5774 feet = 5' 6.61"
180 cm = 180 ÷ 30.48 = 5.9055 feet = 5' 10.87"
200 cm = 200 ÷ 30.48 = 6.5617 feet = 6' 6.74"

Centimeters to Feet Conversion Table

Centimeters (cm)	Feet (ft)	Feet+Inches
1	0.03281	0' 0.39"
10	0.3281	0' 3.94"
50	1.6404	1' 7.56"
100	3.2808	3' 3.37"
170	5.5774	5' 6.61"
180	5.9055	5' 10.87"
200	6.5617	6' 6.74"

FAQ: CM to Feet Converter

How many feet in a centimeter? 1 cm = 0.0328084 feet.
How many centimeters in a foot? 1 foot = 30.48 cm.
How do I convert cm to feet? Divide the value in centimeters by 30.48.
What is the formula for cm to feet? feet = cm ÷ 30.48

Length Converter

Length Conversion Table