Feet and Inches to CM Converter

Last updated: June 2026

Feet

Inches

Centimetres

170.2 cm

Formula

cm = (feet x 30.48) + (inches x 2.54).

Quick reference table

Height	Centimetres
5ft 0in	152.4 cm
5ft 2in	157.5 cm
5ft 4in	162.6 cm
5ft 5in	165.1 cm
5ft 6in	167.6 cm
5ft 7in	170.2 cm
5ft 8in	172.7 cm
5ft 9in	175.3 cm
5ft 10in	177.8 cm
5ft 11in	180.3 cm
6ft 0in	182.9 cm
6ft 1in	185.4 cm
6ft 2in	187.9 cm

About this calculator

Feet and Inches to CM Converter helps you convert feet and inches to centimetres quickly without doing the arithmetic by hand. It is designed for everyday checks where a clear answer matters: height conversions, BMI inputs, clothing sizes, international forms. Enter a number in either side of the converter, use the swap button when you want to reverse direction, then compare the result with the quick reference table. This is the height converter for searches such as "how tall is 5ft 7 in cm".

Feet and Inches to CM Converter formula

The calculator applies a fixed unit conversion factor. For bidirectional conversion, the reverse formula uses the same factor in the opposite direction.

cm = (feet x 30.48) + (inches x 2.54)
total inches = cm / 2.54, then divide by 12 for feet

How to use the feet and inches to cm converter

Type the feet and inches value into the first input.
Read the converted centimetres value in the second input.
Type into the second input if you want to convert in the opposite direction.
Use the swap button to change which unit appears first.
Check the formula display if you need to show your working.
Use the reference table for common values without repeated typing.

Worked examples

Example conversion

Input: 5 ft 7 in

Calculation: 5 ft 7 in = (5 x 30.48) + (7 x 2.54) = 170.18 cm

Result: 170.18 cm

Second example

Input: 6 ft 0 in

Calculation: 6 ft 0 in = 182.88 cm

Result: 182.88 cm

When this conversion is useful

Use this converter when information is given in feet and inches but your form, plan, recipe, product listing, or comparison needs centimetres. It is especially useful when mixing UK, metric, and imperial measurements.

Height conversions: Enter the source value, check the converted result, and keep enough decimal places for the level of precision needed.
BMI inputs: Enter the source value, check the converted result, and keep enough decimal places for the level of precision needed.
Clothing sizes: Enter the source value, check the converted result, and keep enough decimal places for the level of precision needed.
International forms: Enter the source value, check the converted result, and keep enough decimal places for the level of precision needed.

Rounding and precision

The live converter keeps useful decimal precision, while the reference table rounds values for readability. For casual use, rounded values are usually enough. For engineering, legal documents, medical records, building work, or purchase specifications, keep the original units and confirm the required precision before relying on a rounded number.

Common mistakes

Rounding too early and then using the rounded number in another calculation.
Mixing UK imperial and US customary units where they are not the same.
Entering a combined value in one field when the calculator expects separate units.
Copying a result without the unit label.
Using an approximate mental conversion when an exact factor is needed.

Conversion disclaimer

This converter is for general information and everyday calculation support. It does not replace professional measurement, medical, engineering, legal, or product-specific guidance where exact tolerances matter.

Reference table values may be rounded.
Source measurements can be approximate before they reach the calculator.
Some industries require specific rounding rules or certified measuring equipment.

Frequently asked questions

What is the formula for the feet and inches to cm converter?

Use cm = (feet x 30.48) + (inches x 2.54). To convert back, use total inches = cm / 2.54, then divide by 12 for feet.

Can I type in either input?

Yes. The converter is bidirectional, so changing either input updates the other side.

Why does my result have decimals?

Many unit conversions do not produce a whole number. Decimals keep the result more accurate than rounding to the nearest whole unit.

Should I round the answer?

For everyday use, rounding to one or two decimals is often fine. For technical work, keep more decimal places and follow the rounding rule required for that task.

Are UK and US units always the same?

No. Some units, especially gallons and fluid ounces, differ between UK imperial and US customary systems. Use the converter that matches the system you need.

Related calculators

CM to Inches Converter
Inches to CM Converter
BMI Calculator
Healthy Weight Calculator

What does this mean?

This calculator is designed to help you understand the likely number before you make a decision or start an application.

Your result should be checked against official UK guidance, especially if your circumstances include dependants, exemptions, prior leave, or a complex immigration history.

Treat the figure as a planning tool rather than legal advice. Where the answer affects an application deadline or major payment, speak to an authorised adviser.