18 cup to gal
18 US cups in US gallons
18 cup = 1.125 gal
gal = cup × 1/16
18 US cups is 1.125 US gallons. To get there, multiply by 0.0625.
Values either side
| US cups | US gallons |
|---|---|
| 14 cup | 0.875 |
| 15 cup | 0.9375 |
| 16 cup | 1 |
| 17 cup | 1.0625 |
| 18 cup ← | 1.125 |
| 19 cup | 1.1875 |
| 20 cup | 1.25 |
| 21 cup | 1.3125 |
| 22 cup | 1.375 |
How the conversion works
The relationship is gal = cup × 1/16. 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 cup: US legal cup is 240 mL; the customary cup used here is 236.588 mL.
US gallon: US liquid gallon. The imperial gallon is about 20% larger.
Common questions
- What is 18 cup in US gallons?
- 18 cup is 1.125 gal.
- How do you convert US cups to US gallons?
- Multiply by 0.0625.
Related pages
- US cups to US gallons Full table and converter
- 18 gal to cup The other direction
- 14 cup to gal 0.875 gal
- 15 cup to gal 0.9375 gal
- 16 cup to gal 1 gal
- 17 cup to gal 1.0625 gal
- 19 cup to gal 1.1875 gal
- 20 cup to gal 1.25 gal
- 21 cup to gal 1.3125 gal
- 22 cup to gal 1.375 gal
Sources
- Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
- Calculated on this page — At One Place