/convert/mph-to-kph/ Convert mph to kph instantly. Enter any value and get the result. Includes a conversion table and the exact formula. article Mph to Kph Converter — 247QuickTools
⚡ Speed

Mph to Kph Converter

Convert mph to kph instantly. Enter any value and get the result. Includes a conversion table and the exact formula.

Quick answer: To convert mph to kph, multiply by 1.60934. For example, 1 mph = 1.60934 kph. Use the calculator below for any value.
mph to kph
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Common conversions
Mph Kph
Formula:

How to convert mph to kph

1

Enter your value

Type the number of mph you want to convert into the left box. The result in kph appears instantly in the right box. You can also type into the right box to convert in the other direction.

2

Use the swap button

Click the ⇄ Swap button to reverse the conversion — Kph to Mph. Your current value carries across so you don't have to re-enter anything.

3

About Mph and Kph

Miles per hour (mph) is used in the UK and US. Kilometres per hour (km/h) is used elsewhere. The UK motorway limit of 70 mph = 113 kph.

💡 Did you know?

1 mph = 1.609344 kph. A handy shortcut: add 60% to mph for kph (60 mph ≈ 96 kph). The UK is the only major country still using mph on road signs — Ireland switched to km/h in 2005.

📊 Common conversions at a glance
Mph Kph
10 16.09
20 32.19
30 48.28
40 64.37
50 80.47
60 96.56
Reviewed for 2026. Mph ↔ Kph conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.

Frequently asked questions

How do I convert mph to kph?

To convert mph to kph, multiply by 1.60934. Or use the calculator above for instant results.

How many kph are in 1 mph?

1 mph equals 1.60934 kph.

Is the mph to kph converter free?

Yes, the mph to kph converter is completely free with no sign-up required, no downloads, and it works offline once the page has loaded.