JAP REPAIRS & CONVERSIONS · CONVERSION GUIDE

KM to MPH Conversions for Japanese Import Vehicles

We provide professional speedometer conversion services that get your imported Japanese vehicle reading correctly and IVA-compliant.

Why Japanese Import Vehicles Need KM to MPH Conversion

Many Japanese import vehicles arrive in the UK with speedometers displaying kilometres per hour (km/h) as their primary speed reading. While this is standard in Japan, UK drivers must be able to clearly read their vehicle speed in miles per hour (mph) when using public roads. An inaccurate or hard-to-read speed display can be confusing and increase the chances of you committing a speeding offence. This can also create problems during the registration process.

JAP Repairs & Conversions provides professional km to mph conversion services for Japanese imports to help vehicles meet UK compliance requirements before registration and everyday road use. Whether your vehicle requires a speedometer face conversion, electronic recalibration or a complete speed display solution. We perform conversions accurately and professionally for long-term reliability and legal road use.

Quick Km/h to Mph Reference Chart

Use this chart as a rough guide. Your speedometer conversion will be fitted and calibrated by our team for accuracy.

KM/H to MPH Conversion Table
KM/H MPH
30 ≈ 19
50 ≈ 31
70 ≈ 43
100 ≈ 62
120 ≈ 75

Need Your Speedometer Converted for UK Roads?

We specialise in converting km/h speedometers to mph accurately so that your imported vehicle passes IVA testing and reads correctly for UK roads.

Get a Speedometer Conversion Quote

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Business Hours

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Closed on Weekends & Bank Holidays