---
title: "Arcseconds to Radians — \" to rad converter"
description: "1 arcsecond = 0.000004848 radians. Convert arcseconds to radians with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/arcseconds-to-radians/
site: "At One Place"
---

# Arcseconds to radians

**1 arcsecond in radians: 1 " = 0.000004848 rad**

rad = " × 0.000004848137

To convert arcseconds to radians, multiply by 0.000004848137. The table below gives the values people look up most often, and the converter works for any number.

## Arcseconds to radians table

*Common arcsecond values converted to radians.*

| Arcseconds | Radians |
| --- | --- |
| 1 " | 0.000004848 |
| 2 " | 0.000009696 |
| 3 " | 0.00001454 |
| 4 " | 0.00001939 |
| 5 " | 0.00002424 |
| 10 " | 0.00004848 |
| 15 " | 0.00007272 |
| 20 " | 0.00009696 |
| 25 " | 0.0001212 |
| 30 " | 0.0001454 |
| 40 " | 0.0001939 |
| 50 " | 0.0002424 |
| 75 " | 0.0003636 |
| 100 " | 0.0004848 |
| 250 " | 0.001212 |
| 500 " | 0.0024241 |
| 1,000 " | 0.0048481 |

## How the conversion works

The relationship is rad = " × 0.000004848137. Both units measure angle, so the conversion is a fixed factor that never changes.

## Common questions

### How many radians are in one arcsecond?

One arcsecond equals 0.000004848 radians. rad = " × 0.000004848137.

### How do you convert arcseconds to radians?

Use rad = " × 0.000004848137. So 10 " is 0.00004848 rad.

### How many arcseconds are in one radian?

One radian equals 206,264.81 arcseconds, which is the reverse of the conversion above.

## Related pages

- [Radians to Arcseconds](https://atoneplace.net/convert/radians-to-arcseconds/)
- [Arcseconds to Degrees](https://atoneplace.net/convert/arcseconds-to-degrees/)

## 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/)