At One Place

15 gal to L

15 US gallons in liters
15 gal = 56.78118 L
L = gal × 3.785411784

15 US gallons is 56.78118 liters. To get there, multiply by 3.785411784.

Values either side

US gallons near 15, converted to liters.
US gallons Liters
11 gal 41.63953
12 gal 45.42494
13 gal 49.21035
14 gal 52.99576
15 gal ← 56.78118
16 gal 60.56659
17 gal 64.352
18 gal 68.13741
19 gal 71.92282

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 15 gal in liters?
15 gal is 56.78118 L.
How do you convert US gallons to liters?
Multiply by 3.785411784.

Related pages

Sources

  1. Guide for the Use of the International System of Units (SP 811) — NIST (Public domain (US Government))
  2. The International System of Units (SI Brochure) — Bureau International des Poids et Mesures
  3. Calculated on this page — At One Place

How these figures are compiled and checked