# R5 | perplexity/sonar-pro | run 1

## Prompt

How many kilometers are in 100 miles? Show the conversion factor and cite a source for it.

## Response

100 miles is approximately **160.93–160.93₄ kilometers**, depending on how many decimal places you keep.[1](https://www.rapidtables.com/convert/length/mile-to-km.html?x=100)[9](https://convertoctopus.com/100-miles-to-kilometers)  
The standard conversion factor is **1 mile = 1.60934 km** (more precisely **1.609344 km**), so you multiply miles by this factor to get kilometers.[1](https://www.rapidtables.com/convert/length/mile-to-km.html?x=100)[7](https://all-convert.com/length/mile-to-kilometer/100)[8](https://coolconversion.com/length/100-mi-to-km)

## Conversion factor

- **Exact/standard factor:**  
  - **1 mile = 1.609344 kilometers**.[1](https://www.rapidtables.com/convert/length/mile-to-km.html?x=100)[9](https://convertoctopus.com/100-miles-to-kilometers)  
  - Many practical calculators use the rounded factor **1 mile = 1.60934 kilometers**.[7](https://all-convert.com/length/mile-to-kilometer/100)[8](https://coolconversion.com/length/100-mi-to-km)

- **Conversion formula:**  
  \[
  \text{kilometers} = \text{miles} \times 1.609344
  \]

## Calculation for 100 miles

Using the precise factor:

\[
100 \text{ miles} \times 1.609344 \frac{\text{km}}{\text{mile}} = 160.9344 \text{ km}
\][1](https://www.rapidtables.com/convert/length/mile-to-km.html?x=100)[5](https://miles-to-km.appspot.com/amp/100-miles-to-km.html)[9](https://convertoctopus.com/100-miles-to-kilometers)

So:
- **100 miles = 160.9344 km** (precise)[1](https://www.rapidtables.com/convert/length/mile-to-km.html?x=100)[5](https://miles-to-km.appspot.com/amp/100-miles-to-km.html)[9](https://convertoctopus.com/100-miles-to-kilometers)  
- Often rounded and written as **160.934 km** or **160.93 km** in calculators and tables.[2](https://www.ck12.org/flexi/cbse-math/length-conversion/how-many-kilometers-are-in-100-miles/)[7](https://all-convert.com/length/mile-to-kilometer/100)[10](https://unitcompare.com/mile-to-kilometer/100)

Would you like a small table of common mile-to-kilometer conversions (e.g., 1, 5, 10, 50, 100 miles)?
