At One Place

18 tsp to gal

18 teaspoons in US gallons
18 tsp = 0.023438 gal
gal = tsp × 0.001302083333

18 teaspoons is 0.023438 US gallons. To get there, multiply by 0.001302083333.

Values either side

Teaspoons near 18, converted to US gallons.
Teaspoons US gallons
14 tsp 0.018229
15 tsp 0.019531
16 tsp 0.020833
17 tsp 0.022135
18 tsp ← 0.023438
19 tsp 0.02474
20 tsp 0.026042
21 tsp 0.027344
22 tsp 0.028646

How the conversion works

The relationship is gal = tsp × 0.001302083333. 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 18 tsp in US gallons?
18 tsp is 0.023438 gal.
How do you convert teaspoons to US gallons?
Multiply by 0.001302083333.

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