42 US gallons to liters
158.99 L
42 gal = 158.99 L.
liters
158.99L
42 gal = 158.99 L
The short answer
How many liters is 42 US gallons?
42 gal = 158.99 L. 1 US gallon = 3.785412 liters, so the working is 42 × 3.785412 = 158.99.
The working
The factor below is an exact definition rather than a measurement, so nothing is approximated in the arithmetic. The only rounding on this page happens where a number is displayed.
1 US gallon = 3.785412 liters 42 × 3.785412 = 158.99
How much precision do you need?
Each row is the same answer cut at a different number of decimals, with what that choice costs you. Pick the shortest row whose error is smaller than whatever you are measuring with.
| Rounded to | Answer (L) | Off by |
|---|---|---|
| Whole number | 159 | +0.01271 |
| 1 decimal | 159.0 | +0.01271 |
| 2 decimals | 158.99 | +0.00271 |
Round trip: take 158.99 L back the other way and you land on 42.0007 gal — a drift of 0.0007 gal. That gap is the rounding, not the conversion.
What 42 gal looks like
42 gal
A barrel of crude oil is 42 US gallons, the figure every price quotation from the EIA is built on.
Frequently asked questions
What is 42 US gallons in liters?
42 US gallons is 158.99 liters. 1 US gallon = 3.785412 liters, so the working is 42 × 3.785412 = 158.99.
How accurate is 158.99 L?
Rounding to 158.99 L and converting straight back gives 42.0007 gal, a drift of 0.0007 gal from the 42 you started with. The factor itself is exact; every bit of that difference comes from the rounding, not the conversion.
Nearby values
Any value at all
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