🥤US gallons to US fluid ounces
Convert us gallons (gal) to us fluid ounces (fl oz): 1 gal = 128 fl oz. Formula, conversion table and steps.
US gallons to US fluid ounces conversion table
| US | ounces |
|---|---|
| 1 | 128 fl oz |
| 2 | 256 fl oz |
| 5 | 640 fl oz |
| 10 | 1,280 fl oz |
| 20 | 2,560 fl oz |
| 50 | 6,400 fl oz |
| 100 | 12,800 fl oz |
| 250 | 32,000 fl oz |
| 500 | 64,000 fl oz |
| 1000 | 128,000 fl oz |
Machine API (x402)
$0.001 / callThe same query is available to AI agents as a paid JSON endpoint — pre-configured for this pair:
GET /api/v1/converters/volume-converter?value=1&from=gal&to=floz HTTP/1.1
Host: agenttools-hub.vercel.app
→ 402 (x402 payment required)
→ 200 {"tool": "converters/volume-converter", "result": { "value": 128, "answer": "128 fl oz" }}/llms.txt · OpenAPI · agent guide
Frequently asked questions
What is 1 US equal to?
1 US equals 1 gal = 128 fl oz — see the conversion table below for more magnitudes.
What is the formula for us gallons to us fluid ounces?
Use the tool's US → ounces factor shown in the result details. The conversion is a fixed multiplication, so it is exact within the displayed precision.
How many liters in a US gallon?
One US liquid gallon is exactly 3.785411784 liters. (The imperial gallon used in the UK is 4.54609 L.)
How many tablespoons in a cup?
16 US tablespoons in one US cup; 48 teaspoons per cup.
Is a US cup the same as a metric cup?
No — a US legal cup is 240 mL and a US customary cup 236.59 mL; this converter uses the customary 236.59 mL definition. A metric cup (250 mL) is a different, rounder unit.