Feet and inches to centimetres calculator
Enter feet and inches separately and get the height in centimetres and metres — combined first, so the answer is not rounded twice.
| Breakdown | Value |
|---|
Estimate. The method and sources are on this page — check them against your own case before you act.
How it is calculated
A height written as 5 ft 7 in is one measurement in two parts. Polish the parts into a single number of inches before converting, then multiply by the exact inch factor.
cm = (feet × 12 + inches) × 2.54 · metres = cm ÷ 100
Combine the two parts
Multiply the feet by 12 and add the extra inches. 5 ft 7 in becomes (5 × 12) + 7 = 67 inches. If you skip this step and convert the parts separately, rounding can creep in.
Multiply by 2.54
The international inch is exactly 2.54 cm, so 67 inches × 2.54 = 170.18 cm. Because the factor is exact, the only rounding is in what you choose to display.
Write the result as cm or m
Forms want centimetres, so 170.18 cm is the figure to copy. Divide by 100 for metres: 1.7018 m. Most Indian forms accept whole centimetres, in which case 170 cm is the rounded answer.
Feet and inches to centimetres — common heights
| Feet + inches | Centimetres | Metres | Inches |
|---|---|---|---|
| 4 ft 0 in | 121.92 | 1.219 | 48 |
| 4 ft 6 in | 137.16 | 1.372 | 54 |
| 5 ft 0 in | 152.40 | 1.524 | 60 |
| 5 ft 3 in | 160.02 | 1.600 | 63 |
| 5 ft 6 in | 167.64 | 1.676 | 66 |
| 5 ft 7 in | 170.18 | 1.702 | 67 |
| 5 ft 9 in | 175.26 | 1.753 | 69 |
| 5 ft 10 in | 177.80 | 1.778 | 70 |
| 6 ft 0 in | 182.88 | 1.829 | 72 |
| 6 ft 2 in | 187.96 | 1.880 | 74 |
| 6 ft 5 in | 195.58 | 1.956 | 77 |
| 6 ft 6 in | 198.12 | 1.981 | 78 |
What most pages get wrong
Inches run from 0 to 11, not 0 to 12
The inches box stops at 11.9 because 12 inches is exactly one foot. Keeping feet and inches separate avoids the classic mistake of reading 5.7 as 5 ft 7 in when it means 5.7 feet.
1 ft = 30.48 cm follows from the inch
The inch is defined as exactly 2.54 cm and there are 12 inches in a foot, so a foot is 12 × 2.54 = 30.48 cm. No rounding is involved at any step.
Write centimetres, keep the inches in your head
Indian applications, medical records and school files record height in cm. Convert the full height once — 5 ft 7 in is 170.18 cm — then round only at the point of writing.
Read one edge of the tape, not both
Many Indian tape measures print inches on one edge and centimetres on the other. Mixing the two edges on a 5 ft 7 in measurement is how people end up with a height that is off by several centimetres.
Frequently asked questions
What is 5 ft 7 in in centimetres?+
How do I convert feet and inches to cm by hand?+
Why is 5.5 feet not 5 ft 5 in?+
Is 6 feet the same as 183 cm?+
Can I enter 12 inches?+
How many cm is 5 feet?+
Should I round my height up or down on a form?+
Sources, dates and a changelog.
Every number this calculator uses is either an input you control or a value from the sources below. The formula is compiled and tested at build time, so the page cannot ship with a broken calculation.
Sources
This page
- Last verified: 29 October 2026
- Next review: 29 April 2027
- Vertical: Unit Converters
- Build tests: 4 passed
- Changelog: 1 entry
How we handle errors
- Spotted a mistake? Report it — we correct and log it.
- Corrections appear in the changelog below.
- Read the methodology and the disclaimer.