# KM to Miles

Convert kilometers to miles with configurable decimal precision

> Canonical page: https://elysiatools.com/en/tools/km-to-miles

- **Category:** Math & Numbers

- **Keywords:** kilometers, miles, distance, conversion, km, mile

## Overview

Convert kilometers to miles instantly with adjustable decimal precision. Ideal for runners, travelers, and logistics planning, this tool delivers accurate distance conversions in JSON format for easy integration into spreadsheets, apps, or training logs.

## Inputs

- **Kilometers** (text): e.g. 5
- **Decimal Precision** (number)

## When to use

- Planning running routes or races when distances are marked in kilometers but you track progress in miles
- Converting vehicle fuel efficiency or odometer readings between metric and imperial measurement systems
- Translating international travel distances for itinerary planning, navigation apps, or mapping tools

## How it works

- Enter the distance in kilometers into the input field
- Set your preferred decimal precision from 0 to 10 places (default is 4)
- Receive an instant JSON output containing both the original kilometer value and the converted mile value

## Use cases

- Marathon and 5K race planning for international events with mixed measurement systems
- Automotive fuel economy calculations across different regional measurement standards
- Hiking and cycling route mapping for cross-border trails and navigation

## Frequently asked questions

### What is the conversion formula used?

The tool uses the standard conversion factor where 1 kilometer equals approximately 0.621371 miles.

### Can I convert miles back to kilometers?

This tool converts km to miles only. For reverse conversion, use a dedicated miles to kilometers converter.

### What is the maximum decimal precision available?

You can configure precision from 0 to 10 decimal places, with 4 being the default setting.

### Is the output format compatible with spreadsheets?

Yes, the JSON output can be easily parsed into Excel, Google Sheets, or integrated into applications via API.

### Does the tool support batch conversions?

No, this tool processes single conversions. For multiple values, run separate conversions or use the API programmatically.

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