ReadyCalculator

🚗 KM to Miles Calculator

Convert kilometers to miles instantly

Conversion Formula

miles = km × 0.621371

1 kilometer = 0.621371192 miles

Quick approximation: divide by 1.6 or multiply by 0.62

Quick Conversion Table

1 km0.62 mi
5 km3.11 mi
10 km6.21 mi
25 km15.53 mi
50 km31.07 mi
100 km62.14 mi
200 km124.27 mi
500 km310.69 mi

Common Distances

5 km
5K race
3.11 mi
10 km
10K race
6.21 mi
21.1 km
Half marathon
13.11 mi
42.2 km
Marathon
26.22 mi
100 km
Century ride (cycling)
62.14 mi
160 km
100 miles
99.42 mi

Quick Mental Math

Simple Approximation

Divide km by 1.6 or multiply by 0.6

Example: 100 km ÷ 1.6 ≈ 62 miles

Alternative Method

Take half, then add back 10%

Example: 100 km → 50 + 5 + 5 = 60 miles (close to 62.14)

How to Use This Calculator

1

Enter Your Values

Input the required values in the calculator fields above. Make sure all inputs are valid numbers.

2

Click Calculate

Press the "Calculate" button to perform the calculation and see your results.

3

Review Results

Review the calculated results displayed below. Use these values for your needs.

About Km To Miles Calculator

The Km To Miles Calculator is a useful tool for calculating km to miles values. This calculator helps you quickly and accurately determine the results you need for your calculations.

When to Use This Calculator

  • Quick Calculations: Get instant results without manual computation
  • Accuracy: Ensure precise calculations every time
  • Planning: Use for project planning and estimation
  • Verification: Double-check your manual calculations

Why Use Our Calculator?

  • Instant Results: Get accurate calculations immediately
  • Easy to Use: Simple interface for all skill levels
  • 100% Free: No registration or payment required
  • Mobile Friendly: Works on all devices
  • Accurate: Precise mathematical calculations

Tips for Best Results

  • Double-Check Inputs: Verify all values before calculating
  • Use Valid Numbers: Ensure inputs are valid numbers
  • Review Results: Check results for reasonableness
  • Clear and Retry: Clear inputs if you need to recalculate
Frequently Asked Questions

How many miles are in a kilometer?

1 km = 0.621371 miles. To convert, multiply kilometers by 0.621371 or divide by 1.60934.

Is a kilometer longer than a mile?

No! A mile is longer. 1 mile ≈ 1.6 kilometers. A kilometer is about 62% of a mile.

Which countries use kilometers vs miles?

Most countries use kilometers (metric system). The US, UK, and a few others primarily use miles.