# Metric to Imperial Converter

URL: https://speedycalculator.com/calculators/conversion/metric-to-imperial-conversion/
Last updated: 2026-10-25

> The metric to imperial converter turns centimetres to inches, metres to feet, kilometres to miles, kilograms to pounds, grams to ounces, litres to gallons and Celsius to Fahrenheit, all on one page.

## Inputs

- Centimetres
- Metres
- Kilometres
- Kilograms
- Grams
- Litres
- Celsius

## Results

- Centimetres in inches
- Metres in feet
- Kilometres in miles
- Kilograms in pounds
- Grams in ounces
- Litres in US gallons
- Celsius in Fahrenheit

## Formula

```
in = cm ÷ 2.54;  ft = m ÷ 0.3048;  mi = km ÷ 1.609344
lb = kg ÷ 0.45359237;  oz = g ÷ 28.3495;  US gal = L ÷ 3.78541;  °F = °C × 9/5 + 32
```

## Explanation

Travellers, students and online shoppers often need several metric-to-imperial conversions at once; this page shows them together. In the U.S. imperial-style units are called “U.S. customary” or “standard” units.

### How to use the Metric to Imperial Converter

- **Centimetres**
- **Metres**
- **Kilometres**
- **Kilograms**
- **Grams**
- **Litres**
- **Celsius**

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

### How it works

Each input is converted independently, so fill in only what you need.

### Inputs explained

FieldWhat to enterCentimetresA numberMetresA numberKilometresA numberKilogramsA numberGramsA numberLitresA numberCelsiusA number

### What each result means

- **Centimetres in inches** = [Centimetres] ÷ 2.54
- **Metres in feet** = [Metres] ÷ 0.3048
- **Kilometres in miles** = [Kilometres] ÷ 1.609344
- **Kilograms in pounds** = [Kilograms] ÷ 0.45359237
- **Grams in ounces** = [Grams] ÷ 28.349523125
- **Litres in US gallons** = [Litres] ÷ 3.785411784
- **Celsius in Fahrenheit** = [Celsius] × 9 ÷ 5 + 32

### Example values

How the main result changes when **Centimetres** changes and everything else stays at the example values above:

CentimetresKilograms in pounds (lb)15154.32422.5154.32430154.32437.5154.32445154.32460154.324

## Worked example

Inputs — Centimetres: 30; Metres: 1.8; Kilometres: 10; Kilograms: 70; Grams: 100; Litres: 1; Celsius: 25.

Results — Centimetres in inches = 11.811 in; Metres in feet = 5.906 ft; Kilometres in miles = 6.214 mi; **Kilograms in pounds = 154.324 lb**; Grams in ounces = 3.527 oz; Litres in US gallons = 0.2642 US gal; Celsius in Fahrenheit = 77 °F.

## FAQ

**What are U.S. “standard” units?**
The U.S. customary system: inches, feet, pounds, gallons and so on.

**How do I quickly convert km to miles?**
Multiply by 0.6 for a rough answer, or by 0.621371 exactly.

**What formula does the Metric to Imperial Converter use?**
in = cm ÷ 2.54;  ft = m ÷ 0.3048;  mi = km ÷ 1.609344.


## 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)