# Height in Inches Calculator

URL: https://speedycalculator.com/calculators/conversion/height-in-inches/
Last updated: 2026-10-25

> The height in inches calculator converts a height in feet and inches (or centimetres) into total inches, the format many medical forms, BMI tables and sizing charts ask for.

## Inputs

- Feet
- Inches

## Results

- Height in inches
- In centimetres
- In metres

## Formula

```
total inches = feet × 12 + inches
```

## Explanation

Doctors’ offices and some government forms record height in total inches, so 5 ft 9 in becomes 69 in. Metric heights convert at exactly 2.54 cm per inch.

### How to use the Height in Inches Calculator

- **Feet**
- **Inches**
- Every result field is editable: type into **Height in inches** or any other result and **Feet** plus every other field update to match.

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Feet are multiplied by 12 and added to the inches. Type a total in inches or centimetres into a result to split it back.

### Height chart

Feet & inchesInchescm4′ 6″54137.24′ 8″56142.24′ 10″58147.35′ 0″60152.45′ 2″62157.55′ 4″64162.65′ 6″66167.65′ 8″68172.75′ 10″70177.86′ 0″72182.96′ 2″741886′ 4″761936′ 6″78198.1

### Inputs explained

FieldWhat to enterFeetA numberInchesA number

### What each result means

- **Height in inches** = [Feet]×12 + [Inches]
- **In centimetres** = ([Feet]×12 + [Inches]) × 2.54
- **In metres** = ([Feet]×12 + [Inches]) × 0.0254

## Worked example

Inputs — Feet: 5; Inches: 9.

Results — **Height in inches = 69 in**; In centimetres = 175.3 cm; In metres = 1.753 m.

## FAQ

**How many inches is 5′ 9″?**
69 in.

**How many inches is 6 feet?**
72 in.

**What formula does the Height in Inches Calculator use?**
total inches = feet × 12 + inches.


## Sources

- [NIST Special Publication 811 – Guide for the Use of the International System of Units](https://www.nist.gov/pml/special-publication-811)
- [NIST Handbook 44 Appendix C – General tables of units of measurement](https://www.nist.gov/pml/owm/nist-handbook-44-current-edition)