---
title: "120 gal to fl oz = 15,360 fl oz"
description: "120 US gallons is 15,360 US fluid ounces. The arithmetic, a table of nearby values, and a converter for any other number."
url: https://atoneplace.net/convert/120-gallons-to-fl-oz/
site: "At One Place"
---

# 120 gal to fl oz

**120 US gallons in US fluid ounces: 120 gal = 15,360 fl oz**

fl oz = gal × 128

120 US gallons is 15,360 US fluid ounces. To get there, multiply by 128.

## Values either side

*US gallons near 120, converted to US fluid ounces.*

| US gallons | US fluid ounces |
| --- | --- |
| 90 gal | 11,520 |
| 95 gal | 12,160 |
| 100 gal | 12,800 |
| 110 gal | 14,080 |
| 120 gal ← | 15,360 |
| 125 gal | 16,000 |
| 150 gal | 19,200 |
| 175 gal | 22,400 |
| 180 gal | 23,040 |

## How the conversion works

The relationship is fl oz = gal × 128. 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 120 gal in US fluid ounces?

120 gal is 15,360 fl oz.

### How do you convert US gallons to US fluid ounces?

Multiply by 128.

## Related pages

- [US gallons to US fluid ounces](https://atoneplace.net/convert/gallons-to-fl-oz/)
- [120 fl oz to gal](https://atoneplace.net/convert/120-fl-oz-to-gallons/)
- [90 gal to fl oz](https://atoneplace.net/convert/90-gallons-to-fl-oz/)
- [95 gal to fl oz](https://atoneplace.net/convert/95-gallons-to-fl-oz/)
- [100 gal to fl oz](https://atoneplace.net/convert/100-gallons-to-fl-oz/)
- [110 gal to fl oz](https://atoneplace.net/convert/110-gallons-to-fl-oz/)
- [125 gal to fl oz](https://atoneplace.net/convert/125-gallons-to-fl-oz/)
- [150 gal to fl oz](https://atoneplace.net/convert/150-gallons-to-fl-oz/)
- [175 gal to fl oz](https://atoneplace.net/convert/175-gallons-to-fl-oz/)
- [180 gal to fl oz](https://atoneplace.net/convert/180-gallons-to-fl-oz/)

## 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/)