Loading page
About this tool
Convert road distances and speed limits between miles and kilometres, with a driving-time estimate for the trip.
This converter turns road distances and posted speed limits between miles and kilometres using the exact factor 1 mile = 1.609344 km, fixed by the 1959 international yard and pound agreement. It is aimed at drivers hiring a car in a country that signs the other unit, and it also returns the driving time for the distance at the speed you enter, so a 250 mile leg at 70 mph reads as 402.34 km at 112.7 km/h in about 3 h 34 min.
Open Miles to Kilometres Travel Converter on AltFTool — it loads instantly in your browser.
Paste or upload your source content.
Choose the target format or conversion mode.
Copy or download the converted result.
Uses 1.609344 rather than the rough 1.6, so long distances do not drift.
Convert the leg and the limit in one screen, then get the driving time from both.
Common built-up, rural and motorway limits shown in both units for quick recognition.
Exactly 1.609344 kilometres. That value is definitional rather than measured: the 1959 international yard and pound agreement fixed the yard at 0.9144 m, and a statute mile is 1,760 yards, giving 1,609.344 m.
112.65 km/h, which is why UK motorway signs read 70 while comparable European motorways post 110, 120 or 130 km/h. Other common pairs: 30 mph is 48 km/h, 50 mph is 80 km/h and 65 mph is 105 km/h.
Multiply by 8 and divide by 5, or add half again plus a tenth — 60 miles becomes 60 + 30 + 6 = 96 km against a true 96.6. The Fibonacci trick also works because consecutive Fibonacci numbers approximate the ratio: 5 miles is about 8 km, 8 miles about 13 km, 13 miles about 21 km.
Yes. A nautical mile is 1,852 m exactly — about 15% longer than a statute mile — and is used for sea and air navigation, where speed is measured in knots (one nautical mile per hour). Road distances and car speedometers always use the statute mile, which is what this converter applies.
Add the Miles to Kilometres Travel Converterwidget to your blog or website — free, responsive, no signup. Just keep the “Widget by AltFTool” credit link visible.
<iframe src="https://www.altftool.com/embed/widget/miles-kilometres-travel-converter"
title="Miles to Kilometres Travel Converter — free AltFTool widget"
width="100%" height="640" style="border:0;border-radius:12px;overflow:hidden"
loading="lazy" referrerpolicy="no-referrer-when-downgrade"></iframe>
<p style="font-size:12px;margin:4px 0 0">Widget by <a href="https://www.altftool.com/tools/all/miles-kilometres-travel-converter?utm_source=embed&utm_medium=widget">AltFTool — free online tools</a></p>