---
title: "20 mL to gal = 0.0052834 gal"
description: "20 milliliters is 0.0052834 US gallons. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/20-ml-to-gallons/
site: "At One Place"
---

# 20 mL to gal

**20 milliliters in US gallons: 20 mL = 0.0052834 gal**

gal = mL × 0.000264172052

20 milliliters is 0.0052834 US gallons. To get there, multiply by 0.000264172052.

## Values either side

*Milliliters near 20, converted to US gallons.*

| Milliliters | US gallons |
| --- | --- |
| 16 mL | 0.0042268 |
| 17 mL | 0.0044909 |
| 18 mL | 0.0047551 |
| 19 mL | 0.0050193 |
| 20 mL ← | 0.0052834 |
| 21 mL | 0.0055476 |
| 22 mL | 0.0058118 |
| 23 mL | 0.006076 |
| 24 mL | 0.0063401 |

## How the conversion works

The relationship is gal = mL × 0.000264172052. Both units measure volume, so the conversion is a fixed factor that never changes. The figure is exact rather than approximate: since the international yard and pound agreement of 1959, an inch is defined as exactly 25.4 millimetres and a pound as exactly 0.45359237 kilograms, and every other imperial and US customary unit here is derived from those two.

> US gallon: US liquid gallon. The imperial gallon is about 20% larger.

## Common questions

### What is 20 mL in US gallons?

20 mL is 0.0052834 gal.

### How do you convert milliliters to US gallons?

Multiply by 0.000264172052.

## Related pages

- [Milliliters to US gallons](https://atoneplace.net/convert/ml-to-gallons/)
- [20 gal to mL](https://atoneplace.net/convert/20-gallons-to-ml/)
- [16 mL to gal](https://atoneplace.net/convert/16-ml-to-gallons/)
- [17 mL to gal](https://atoneplace.net/convert/17-ml-to-gallons/)
- [18 mL to gal](https://atoneplace.net/convert/18-ml-to-gallons/)
- [19 mL to gal](https://atoneplace.net/convert/19-ml-to-gallons/)
- [21 mL to gal](https://atoneplace.net/convert/21-ml-to-gallons/)
- [22 mL to gal](https://atoneplace.net/convert/22-ml-to-gallons/)
- [23 mL to gal](https://atoneplace.net/convert/23-ml-to-gallons/)
- [24 mL to gal](https://atoneplace.net/convert/24-ml-to-gallons/)

## 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/)