At One Place

21 L to gal

21 liters in US gallons
21 L = 5.547613 gal
gal = L × 0.2641720524

21 liters is 5.547613 US gallons. To get there, multiply by 0.2641720524.

Values either side

Liters near 21, converted to US gallons.
Liters US gallons
17 L 4.490925
18 L 4.755097
19 L 5.019269
20 L 5.283441
21 L ← 5.547613
22 L 5.811785
23 L 6.075957
24 L 6.340129
25 L 6.604301

How the conversion works

The relationship is gal = L × 0.2641720524. 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 21 L in US gallons?
21 L is 5.547613 gal.
How do you convert liters to US gallons?
Multiply by 0.2641720524.

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