---
title: "8 cm to mm = 80 mm"
description: "8 centimeters is 80 millimeters. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/8-cm-to-mm/
site: "At One Place"
---

# 8 cm to mm

**8 centimeters in millimeters: 8 cm = 80 mm**

mm = cm × 10

8 centimeters is 80 millimeters. To get there, multiply by 10.

## Values either side

*Centimeters near 8, converted to millimeters.*

| Centimeters | Millimeters |
| --- | --- |
| 4 cm | 40 |
| 5 cm | 50 |
| 6 cm | 60 |
| 7 cm | 70 |
| 8 cm ← | 80 |
| 9 cm | 90 |
| 10 cm | 100 |
| 11 cm | 110 |
| 12 cm | 120 |

## 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 8 cm in millimeters?

8 cm is 80 mm.

### How do you convert centimeters to millimeters?

Multiply by 10.

## Related pages

- [Centimeters to millimeters](https://atoneplace.net/convert/cm-to-mm/)
- [8 mm to cm](https://atoneplace.net/convert/8-mm-to-cm/)
- [4 cm to mm](https://atoneplace.net/convert/4-cm-to-mm/)
- [5 cm to mm](https://atoneplace.net/convert/5-cm-to-mm/)
- [6 cm to mm](https://atoneplace.net/convert/6-cm-to-mm/)
- [7 cm to mm](https://atoneplace.net/convert/7-cm-to-mm/)
- [9 cm to mm](https://atoneplace.net/convert/9-cm-to-mm/)
- [10 cm to mm](https://atoneplace.net/convert/10-cm-to-mm/)
- [11 cm to mm](https://atoneplace.net/convert/11-cm-to-mm/)
- [12 cm to mm](https://atoneplace.net/convert/12-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/)