---
title: "100 cm to mm = 1,000 mm"
description: "100 centimeters is 1,000 millimeters. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/100-cm-to-mm/
site: "At One Place"
---

# 100 cm to mm

**100 centimeters in millimeters: 100 cm = 1,000 mm**

mm = cm × 10

100 centimeters is 1,000 millimeters. To get there, multiply by 10.

## Values either side

*Centimeters near 100, converted to millimeters.*

| Centimeters | Millimeters |
| --- | --- |
| 80 cm | 800 |
| 85 cm | 850 |
| 90 cm | 900 |
| 95 cm | 950 |
| 100 cm ← | 1,000 |
| 110 cm | 1,100 |
| 120 cm | 1,200 |
| 125 cm | 1,250 |
| 150 cm | 1,500 |

## How the conversion works

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

## Common questions

### What is 100 cm in millimeters?

100 cm is 1,000 mm.

### How do you convert centimeters to millimeters?

Multiply by 10.

## Related pages

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

## 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/)