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Miles to Kilometers Converter

Convert imperial distances to kilometers using the precise 1 mile = 1.60934 km factor.

Results

Kilometers
4.99 km

How to use this calculator

  1. Enter a distance in miles.
  2. We multiply by 1.60934 to convert to kilometers.
  3. View the km result (rounded for display).

Inputs explained

Miles
Statute miles you want to convert to kilometers.

How it works

Multiply miles by 1.60934 to get kilometers. The calculator handles the math instantly.

We round to two decimals for readability but keep higher precision internally.

Formula

Kilometers = Miles × 1.60934

When to use it

  • Converting race distances (5K, 10K, half/full marathons) between miles and km.
  • Planning trips in metric countries when you know distances in miles.
  • Quick homework or engineering unit conversions.

Tips & cautions

  • Statute miles are used here; nautical miles differ (1 nm = 1.852 km).
  • Keep extra decimals for routing/engineering accuracy.
  • If you only have feet, divide by 5280 to get miles first.
  • Statute miles only—nautical conversions not included.
  • Rounded display may differ slightly from internal precision.

Worked examples

Half marathon

  • 13.1 × 1.60934 ≈ 21.082 km

100 miles in km

  • 100 × 1.60934 = 160.934 km

Deep dive

This miles to kilometers converter multiplies miles by 1.60934 for instant metric distances. Enter miles to see km for travel, fitness, or homework without manual math.

Use it to plan trips in metric regions or convert race distances from imperial to metric. Statute miles only; nautical miles use 1 nm = 1.852 km.

FAQs

Is this suited for aviation miles?
Yes. Statute miles are standard here, matching North American road distances and most flight plans.
Can I reverse the conversion?
Use the kilometers to miles converter or change the input to kilometers × 0.621371 manually.
Does this handle nautical miles?
No. Nautical miles use 1 nm = 1.852 km. Convert to statute miles first if needed.
Can I get more decimal places?
Internal math keeps more precision; round as needed for your use case.

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