Average Speed Calculator

By the CalcMundi team · Updated October 22, 2026 · Formulas checked against standard financial math

Choose what you want to find and fill in the other two values.

The formula

Average speed = distance ÷ time. For time, divide distance by speed; for distance, multiply speed by time.

Example

120 miles in 2 hours and 30 minutes is an average speed of 48 mph.

Frequently asked questions

How do I convert mph to km/h?

Multiply by 1.609. To convert km/h to mph, divide by 1.609.

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<iframe src="https://calcmundi.com/embed/average-speed-calculator/" title="Average Speed Calculator" loading="lazy" style="width:100%;max-width:680px;height:640px;border:0"></iframe><script>addEventListener("message",function(e){if(e.origin==="https://calcmundi.com"&&e.data&&e.data.cmH)document.querySelectorAll("iframe[src^='https://calcmundi.com/embed']").forEach(function(f){if(f.contentWindow===e.source)f.style.height=e.data.cmH+"px"})})</script><p style="font:13px sans-serif">Calculator by <a href="https://calcmundi.com/average-speed-calculator/">CalcMundi</a></p>

Results are estimates for information only and are not financial, legal or medical advice. Rates, taxes and fees vary — confirm with a professional or your lender.

Average Speed Calculator

The formula

Example

Frequently asked questions

See also

Add this calculator to your website