Cup (US Customary) to Gallon (US) Converter
1 Cup (US Customary) is equal to 0.0625Gallon (US)s (gal). To convert cup (us customary)s to gallon (us)s, multiply the value by 0.0625 or use the interactive formula breakdown and reference tables below.
Volume Converter
-- Step-by-Step Mathematical Derivation
To convert any quantity from Cup (US Customary) to Gallon (US), multiply the quantity by the constant conversion factor 0.0625.
To reverse the operation, multiply your Gallon (US) figure by 16 (or divide by 0.0625).
- Identify the starting value in Cup (US Customary) (cup).
- Apply the exact linear conversion factor:
1 cup = 0.0625 gal. - Multiply the input value by 0.0625 to obtain the exact measurement in Gallon (US) (gal).
- Verify precision against standard BIPM / NIST SP 811 statutory guidelines.
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Printable Reference Cheat Sheet
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Academic & Research Citation Exporter
Cite this mathematical formula and conversion factor in research papers and wikis
@misc{ai_unit_converter_cup_(us_customary)_to_gallon_(us),
author = {AI Unit Converters Standards Board},
title = {Exact Cup (US Customary) to Gallon (US) Conversion Factor and Mathematical Derivation},
year = {2026},
howpublished = {\url{https://aiunitconverters.com/volume/cup_us-to-gal_us}},
note = {Derived from NIST Special Publication 811 and BIPM SI Brochure}
} 📊Cup (US Customary) to Gallon (US) Conversion Tables
| 1cup | 0.0625gal |
| 2cup | 0.125gal |
| 5cup | 0.3125gal |
| 10cup | 0.625gal |
| 15cup | 0.9375gal |
| 20cup | 1.25gal |
| 25cup | 1.5625gal |
| 50cup | 3.125gal |
| 75cup | 4.6875gal |
| 100cup | 6.25gal |
| 250cup | 15.625gal |
| 500cup | 31.25gal |
| 1000cup | 62.5gal |
| 5000cup | 312.5gal |
| 10000cup | 625gal |
| 1gal | 16cup |
| 2gal | 32cup |
| 5gal | 80cup |
| 10gal | 160cup |
| 15gal | 240cup |
| 20gal | 320cup |
| 25gal | 400cup |
| 50gal | 800cup |
| 75gal | 1,200cup |
| 100gal | 1,600cup |
| 250gal | 4,000cup |
| 500gal | 8,000cup |
| 1000gal | 16,000cup |
| 5000gal | 80,000cup |
| 10000gal | 160,000cup |
❓ Frequently Asked Questions: Cup (US Customary) to Gallon (US)
How do you convert Cup (US Customary)s to Gallon (US)s?▼
1 Cup (US Customary) is equal to 0.0625 Gallon (US)s. Multiply your input value in Cup (US Customary)s by 0.0625 to obtain the exact equivalent in Gallon (US)s.
How many Gallon (US)s are in 1 Cup (US Customary)?▼
There are exactly 0.0625Gallon (US)s (gal) in 1 Cup (US Customary) (cup).
Are these calculations calibrated against official measurement standards?▼
Yes. All conversion factors on AI Unit Converters are calibrated and cross-verified against official BIPM SI Brochure (9th Edition), NIST SP 811, and ISO 80000 measurement metrology standards.