---
title: "100 gal to L = 378.5412 L"
description: "100 US gallons is 378.5412 liters. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/100-gallons-to-liters/
site: "At One Place"
---

# 100 gal to L

**100 US gallons in liters: 100 gal = 378.5412 L**

L = gal × 3.785411784

100 US gallons is 378.5412 liters. To get there, multiply by 3.785411784.

## Values either side

*US gallons near 100, converted to liters.*

| US gallons | Liters |
| --- | --- |
| 80 gal | 302.8329 |
| 85 gal | 321.76 |
| 90 gal | 340.6871 |
| 95 gal | 359.6141 |
| 100 gal ← | 378.5412 |
| 110 gal | 416.3953 |
| 120 gal | 454.2494 |
| 125 gal | 473.1765 |
| 150 gal | 567.8118 |

## How the conversion works

The relationship is L = gal × 3.785411784. 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 100 gal in liters?

100 gal is 378.5412 L.

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

Multiply by 3.785411784.

## Related pages

- [US gallons to liters](https://atoneplace.net/convert/gallons-to-liters/)
- [100 L to gal](https://atoneplace.net/convert/100-liters-to-gallons/)
- [80 gal to L](https://atoneplace.net/convert/80-gallons-to-liters/)
- [85 gal to L](https://atoneplace.net/convert/85-gallons-to-liters/)
- [90 gal to L](https://atoneplace.net/convert/90-gallons-to-liters/)
- [95 gal to L](https://atoneplace.net/convert/95-gallons-to-liters/)
- [110 gal to L](https://atoneplace.net/convert/110-gallons-to-liters/)
- [120 gal to L](https://atoneplace.net/convert/120-gallons-to-liters/)
- [125 gal to L](https://atoneplace.net/convert/125-gallons-to-liters/)
- [150 gal to L](https://atoneplace.net/convert/150-gallons-to-liters/)

## 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/)