Length Converter
Convert between metric and imperial length units.
You can enter decimals (e.g. 10.5)
Centimetres (cm)
177.8
5′ 10″
Feet & inches
5′ 10″
Millimetres (mm)
1,778
Metres (m)
1.778
Kilometres (km)
0.001778
Inches (in)
70
Feet (ft)
5.833333
Yards (yd)
1.944444
Miles (mi)
0.0011048
Choose “Feet & inches” under From to type height-style values like 5 ft 10 in.
In-depth explanation
Convert between millimetres, centimetres, metres, kilometres, inches, feet, yards, and miles. Swap units instantly for DIY, design, and everyday measurements. Everything runs locally in your browser — your inputs are not uploaded to produce the result.
One metre is about 3.28084 feet (exactly 1 ÷ 0.3048). By international agreement, 1 inch = 25.4 millimetres exactly.
Use Length for short measurements (furniture, plans). Use Distance for travel-scale units like miles, kilometres, and nautical miles. Tweak the inputs above to compare options, then copy or note the result you need.
Frequently asked questions
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