Speed Conversion Formula:
From: | To: |
Definition: This calculator converts speed from kilometers per hour (km/h) to miles per hour (mph).
Purpose: It helps with speed unit conversions, particularly useful for international travelers, automotive applications, and sports measurements.
The converter uses the formula:
Where:
Explanation: The speed in kilometers per hour is divided by 1.60934 to get the equivalent speed in miles per hour.
Details: Accurate speed conversion is essential for international travel, vehicle speedometers, aviation, and understanding speed limits in different countries.
Tips: Enter the speed in kilometers per hour (must be > 0) and click calculate to get the equivalent in miles per hour.
Q1: Why is the conversion factor 1.60934?
A: This is the exact conversion between miles and kilometers (1 mile = 1.60934 kilometers).
Q2: How accurate is this conversion?
A: The conversion is mathematically exact, though displayed results are rounded to 3 decimal places.
Q3: What's a quick approximation method?
A: For mental math, you can multiply km/h by 0.6 (actual factor is ~0.62137) to get a rough mph estimate.
Q4: Which countries use mph vs km/h?
A: The US, UK, and a few others use mph, while most countries worldwide use km/h.
Q5: Does this work for any speed?
A: Yes, the conversion works for any speed value, from walking speeds to supersonic velocities.