---
title: "80 mph to km/h = 128.7475 km/h"
description: "80 miles per hour is 128.7475 kilometers per hour. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/80-mph-to-kmh/
site: "At One Place"
---

# 80 mph to km/h

**80 miles per hour in kilometers per hour: 80 mph = 128.7475 km/h**

km/h = mph × 1.609344

80 miles per hour is 128.7475 kilometers per hour. To get there, multiply by 1.609344.

## Values either side

*Miles per hour near 80, converted to kilometers per hour.*

| Miles per hour | Kilometers per hour |
| --- | --- |
| 60 mph | 96.56064 |
| 65 mph | 104.6074 |
| 70 mph | 112.6541 |
| 75 mph | 120.7008 |
| 80 mph ← | 128.7475 |
| 85 mph | 136.7942 |
| 90 mph | 144.841 |
| 95 mph | 152.8877 |
| 100 mph | 160.9344 |

## How the conversion works

The relationship is km/h = mph × 1.609344. Both units measure speed, so the conversion is a fixed factor that never changes.

## Common questions

### What is 80 mph in kilometers per hour?

80 mph is 128.7475 km/h.

### How do you convert miles per hour to kilometers per hour?

Multiply by 1.609344.

## Related pages

- [Miles per hour to kilometers per hour](https://atoneplace.net/convert/mph-to-kmh/)
- [80 km/h to mph](https://atoneplace.net/convert/80-kmh-to-mph/)
- [60 mph to km/h](https://atoneplace.net/convert/60-mph-to-kmh/)
- [65 mph to km/h](https://atoneplace.net/convert/65-mph-to-kmh/)
- [70 mph to km/h](https://atoneplace.net/convert/70-mph-to-kmh/)
- [75 mph to km/h](https://atoneplace.net/convert/75-mph-to-kmh/)
- [85 mph to km/h](https://atoneplace.net/convert/85-mph-to-kmh/)
- [90 mph to km/h](https://atoneplace.net/convert/90-mph-to-kmh/)
- [95 mph to km/h](https://atoneplace.net/convert/95-mph-to-kmh/)
- [100 mph to km/h](https://atoneplace.net/convert/100-mph-to-kmh/)

## 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/)