---
title: "Astronomical units to Centimeters — AU to cm converter"
description: "1 astronomical unit = 14,959,787,000,000 centimeters. Conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/astronomical-units-to-cm/
site: "At One Place"
---

# Astronomical units to centimeters

**1 astronomical unit in centimeters: 1 AU = 14,959,787,000,000 cm**

cm = AU × 14,959,787,070,000

To convert astronomical units to centimeters, multiply by 14,959,787,070,000. The table below gives the values people look up most often, and the converter works for any number.

## Astronomical units to centimeters table

*Common astronomical unit values converted to centimeters.*

| Astronomical units | Centimeters |
| --- | --- |
| 1 AU | 14,959,787,000,000 |
| 2 AU | 29,919,574,000,000 |
| 3 AU | 44,879,361,000,000 |
| 4 AU | 59,839,148,000,000 |
| 5 AU | 74,798,935,000,000 |
| 10 AU | 149,597,870,000,000 |
| 15 AU | 224,396,810,000,000 |
| 20 AU | 299,195,740,000,000 |
| 25 AU | 373,994,680,000,000 |
| 30 AU | 448,793,610,000,000 |
| 40 AU | 598,391,480,000,000 |
| 50 AU | 747,989,350,000,000 |
| 75 AU | 1.121984 × 10^15 |
| 100 AU | 1.4959787 × 10^15 |
| 250 AU | 3.7399468 × 10^15 |
| 500 AU | 7.4798935 × 10^15 |
| 1,000 AU | 1.4959787 × 10^16 |

## How the conversion works

The relationship is cm = AU × 14,959,787,070,000. Both units measure length, so the conversion is a fixed factor that never changes.

## Common questions

### How many centimeters are in one astronomical unit?

One astronomical unit equals 14,959,787,000,000 centimeters. cm = AU × 14,959,787,070,000.

### How do you convert astronomical units to centimeters?

Use cm = AU × 14,959,787,070,000. So 10 AU is 149,597,870,000,000 cm.

### How many astronomical units are in one centimeter?

One centimeter equals 6.685 × 10^-14 astronomical units, which is the reverse of the conversion above.

## Related pages

- [Centimeters to Astronomical units](https://atoneplace.net/convert/cm-to-astronomical-units/)
- [Astronomical units to Meters](https://atoneplace.net/convert/astronomical-units-to-meters/)
- [Astronomical units to Kilometers](https://atoneplace.net/convert/astronomical-units-to-km/)
- [Astronomical units to Millimeters](https://atoneplace.net/convert/astronomical-units-to-mm/)
- [Astronomical units to Miles](https://atoneplace.net/convert/astronomical-units-to-miles/)
- [Astronomical units to Yards](https://atoneplace.net/convert/astronomical-units-to-yards/)
- [Astronomical units to Feet](https://atoneplace.net/convert/astronomical-units-to-feet/)
- [Astronomical units to Inches](https://atoneplace.net/convert/astronomical-units-to-inches/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)