---
title: "100 mm to cm = 10 cm"
description: "100 millimeters is 10 centimeters. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/100-mm-to-cm/
site: "At One Place"
---

# 100 mm to cm

**100 millimeters in centimeters: 100 mm = 10 cm**

cm = mm × 1/10

100 millimeters is 10 centimeters. To get there, multiply by 0.1.

## Values either side

*Millimeters near 100, converted to centimeters.*

| Millimeters | Centimeters |
| --- | --- |
| 80 mm | 8 |
| 85 mm | 8.5 |
| 90 mm | 9 |
| 95 mm | 9.5 |
| 100 mm ← | 10 |
| 110 mm | 11 |
| 120 mm | 12 |
| 125 mm | 12.5 |
| 150 mm | 15 |

## How the conversion works

The relationship is cm = mm × 1/10. Both units measure length, so the conversion is a fixed factor that never changes.

## Common questions

### What is 100 mm in centimeters?

100 mm is 10 cm.

### How do you convert millimeters to centimeters?

Multiply by 0.1.

## Related pages

- [Millimeters to centimeters](https://atoneplace.net/convert/mm-to-cm/)
- [100 cm to mm](https://atoneplace.net/convert/100-cm-to-mm/)
- [80 mm to cm](https://atoneplace.net/convert/80-mm-to-cm/)
- [85 mm to cm](https://atoneplace.net/convert/85-mm-to-cm/)
- [90 mm to cm](https://atoneplace.net/convert/90-mm-to-cm/)
- [95 mm to cm](https://atoneplace.net/convert/95-mm-to-cm/)
- [110 mm to cm](https://atoneplace.net/convert/110-mm-to-cm/)
- [120 mm to cm](https://atoneplace.net/convert/120-mm-to-cm/)
- [125 mm to cm](https://atoneplace.net/convert/125-mm-to-cm/)
- [150 mm to cm](https://atoneplace.net/convert/150-mm-to-cm/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)