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How Many Gallons Are in a Liter? (L to gal Explained)

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How Many Gallons Are in a Liter? (L to gal Explained)

Quick answer: one liter equals 0.264172 US gallons (and one us gallon is 3.7854 liters). To convert any value, multiply your liters by 0.26417205.

Few conversions come up as often as liters to US gallons. Recipes, travel, product listings and school assignments all mix the two, and getting the factor slightly wrong compounds quickly when the numbers get big. This guide gives you the exact factor, the mental shortcut, worked examples, and reference tables you can bookmark.

Understanding the units

Liter (L)

The liter (1,000 cubic centimeters) is the everyday metric volume: bottled water, fuel and engine displacement are all sold by the liter.

US gallon (gal)

The US gallon is exactly 3.785411784 liters. American fuel prices are quoted per gallon, making this one of the most practical conversions for travelers.

The exact conversion formula

US gallons = liters × 0.2641720524

How to convert liters to US gallons, step by step

  1. Take your value in liters.
  2. Multiply by 0.26417205 (the number of US gallons in one liter).
  3. Round sensibly for your context — engineering needs more decimals than a shopping list.

Worked examples:

  • 5 liters × 0.264172 = 1.3209 US gallons
  • 12 liters × 0.264172 = 3.1701 US gallons
  • 50 liters × 0.264172 = 13.2086 US gallons
  • 365 liters × 0.264172 = 96.4228 US gallons

Real-world reference points

Kitchen anchors make volume real: a teaspoon is 5 ml, a tablespoon 15 ml, a US cup 237 ml, a soda can 355 ml, a wine bottle 750 ml, and a US gallon of milk 3.785 liters. Note that dry and liquid measuring cups hold the same volume — they differ only in how you level them off.

Quick lookup: 1 to 100 liters in US gallons

Scan this list for the exact value you need — each line is computed with the precise conversion factor, not an approximation.

  • 1 liter = 0.264172 US gallons
  • 2 liters = 0.528344 US gallons
  • 3 liters = 0.792516 US gallons
  • 4 liters = 1.0567 US gallons
  • 5 liters = 1.3209 US gallons
  • 6 liters = 1.585 US gallons
  • 7 liters = 1.8492 US gallons
  • 8 liters = 2.1134 US gallons
  • 9 liters = 2.3775 US gallons
  • 10 liters = 2.6417 US gallons
  • 11 liters = 2.9059 US gallons
  • 12 liters = 3.1701 US gallons
  • 13 liters = 3.4342 US gallons
  • 14 liters = 3.6984 US gallons
  • 15 liters = 3.9626 US gallons
  • 16 liters = 4.2268 US gallons
  • 17 liters = 4.4909 US gallons
  • 18 liters = 4.7551 US gallons
  • 19 liters = 5.0193 US gallons
  • 20 liters = 5.2834 US gallons
  • 21 liters = 5.5476 US gallons
  • 22 liters = 5.8118 US gallons
  • 23 liters = 6.076 US gallons
  • 24 liters = 6.3401 US gallons
  • 25 liters = 6.6043 US gallons
  • 26 liters = 6.8685 US gallons
  • 27 liters = 7.1326 US gallons
  • 28 liters = 7.3968 US gallons
  • 29 liters = 7.661 US gallons
  • 30 liters = 7.9252 US gallons
  • 31 liters = 8.1893 US gallons
  • 32 liters = 8.4535 US gallons
  • 33 liters = 8.7177 US gallons
  • 34 liters = 8.9818 US gallons
  • 35 liters = 9.246 US gallons
  • 36 liters = 9.5102 US gallons
  • 37 liters = 9.7744 US gallons
  • 38 liters = 10.0385 US gallons
  • 39 liters = 10.3027 US gallons
  • 40 liters = 10.5669 US gallons
  • 41 liters = 10.8311 US gallons
  • 42 liters = 11.0952 US gallons
  • 43 liters = 11.3594 US gallons
  • 44 liters = 11.6236 US gallons
  • 45 liters = 11.8877 US gallons
  • 46 liters = 12.1519 US gallons
  • 47 liters = 12.4161 US gallons
  • 48 liters = 12.6803 US gallons
  • 49 liters = 12.9444 US gallons
  • 50 liters = 13.2086 US gallons
  • 51 liters = 13.4728 US gallons
  • 52 liters = 13.7369 US gallons
  • 53 liters = 14.0011 US gallons
  • 54 liters = 14.2653 US gallons
  • 55 liters = 14.5295 US gallons
  • 56 liters = 14.7936 US gallons
  • 57 liters = 15.0578 US gallons
  • 58 liters = 15.322 US gallons
  • 59 liters = 15.5862 US gallons
  • 60 liters = 15.8503 US gallons
  • 61 liters = 16.1145 US gallons
  • 62 liters = 16.3787 US gallons
  • 63 liters = 16.6428 US gallons
  • 64 liters = 16.907 US gallons
  • 65 liters = 17.1712 US gallons
  • 66 liters = 17.4354 US gallons
  • 67 liters = 17.6995 US gallons
  • 68 liters = 17.9637 US gallons
  • 69 liters = 18.2279 US gallons
  • 70 liters = 18.492 US gallons
  • 71 liters = 18.7562 US gallons
  • 72 liters = 19.0204 US gallons
  • 73 liters = 19.2846 US gallons
  • 74 liters = 19.5487 US gallons
  • 75 liters = 19.8129 US gallons
  • 76 liters = 20.0771 US gallons
  • 77 liters = 20.3412 US gallons
  • 78 liters = 20.6054 US gallons
  • 79 liters = 20.8696 US gallons
  • 80 liters = 21.1338 US gallons
  • 81 liters = 21.3979 US gallons
  • 82 liters = 21.6621 US gallons
  • 83 liters = 21.9263 US gallons
  • 84 liters = 22.1905 US gallons
  • 85 liters = 22.4546 US gallons
  • 86 liters = 22.7188 US gallons
  • 87 liters = 22.983 US gallons
  • 88 liters = 23.2471 US gallons
  • 89 liters = 23.5113 US gallons
  • 90 liters = 23.7755 US gallons
  • 91 liters = 24.0397 US gallons
  • 92 liters = 24.3038 US gallons
  • 93 liters = 24.568 US gallons
  • 94 liters = 24.8322 US gallons
  • 95 liters = 25.0963 US gallons
  • 96 liters = 25.3605 US gallons
  • 97 liters = 25.6247 US gallons
  • 98 liters = 25.8889 US gallons
  • 99 liters = 26.153 US gallons
  • 100 liters = 26.4172 US gallons

Liter to US gallon conversion table

The extended table below covers fractional and large values for quick reference.

Liter (L)US gallon (gal)
0.01 L0.002642 gal
0.05 L0.013209 gal
0.1 L0.026417 gal
0.2 L0.052834 gal
0.25 L0.066043 gal
0.3 L0.079252 gal
0.4 L0.105669 gal
0.5 L0.132086 gal
0.75 L0.198129 gal
1 L0.264172 gal
1.25 L0.330215 gal
1.5 L0.396258 gal
1.75 L0.462301 gal
2 L0.528344 gal
2.5 L0.66043 gal
3 L0.792516 gal
3.5 L0.924602 gal
4 L1.0567 gal
4.5 L1.1888 gal
5 L1.3209 gal
6 L1.585 gal
7 L1.8492 gal
8 L2.1134 gal
9 L2.3775 gal
10 L2.6417 gal
11 L2.9059 gal
12 L3.1701 gal
13 L3.4342 gal
14 L3.6984 gal
15 L3.9626 gal
16 L4.2268 gal
17 L4.4909 gal
18 L4.7551 gal
19 L5.0193 gal
20 L5.2834 gal
22 L5.8118 gal
24 L6.3401 gal
25 L6.6043 gal
26 L6.8685 gal
28 L7.3968 gal
30 L7.9252 gal
32 L8.4535 gal
35 L9.246 gal
40 L10.5669 gal
45 L11.8877 gal
50 L13.2086 gal
55 L14.5295 gal
60 L15.8503 gal
65 L17.1712 gal
70 L18.492 gal
75 L19.8129 gal
80 L21.1338 gal
85 L22.4546 gal
90 L23.7755 gal
95 L25.0963 gal
100 L26.4172 gal
110 L29.0589 gal
120 L31.7006 gal
125 L33.0215 gal
150 L39.6258 gal
175 L46.2301 gal
200 L52.8344 gal
250 L66.043 gal
300 L79.2516 gal
350 L92.4602 gal
400 L105.6688 gal
450 L118.8774 gal
500 L132.086 gal
600 L158.5032 gal
700 L184.9204 gal
750 L198.129 gal
800 L211.3376 gal
900 L237.7548 gal
1,000 L264.1721 gal
1,500 L396.2581 gal
2,000 L528.3441 gal
2,500 L660.4301 gal
5,000 L1,320.86 gal
10,000 L2,641.72 gal

Reverse table: US gallons to liters

US gallon (gal)Liter (L)
0.1 gal0.378541 L
0.25 gal0.946353 L
0.5 gal1.8927 L
1 gal3.7854 L
2 gal7.5708 L
3 gal11.3562 L
4 gal15.1416 L
5 gal18.9271 L
6 gal22.7125 L
7 gal26.4979 L
8 gal30.2833 L
9 gal34.0687 L
10 gal37.8541 L
12 gal45.4249 L
15 gal56.7812 L
20 gal75.7082 L
25 gal94.6353 L
30 gal113.5624 L
40 gal151.4165 L
50 gal189.2706 L
60 gal227.1247 L
75 gal283.9059 L
100 gal378.5412 L
150 gal567.8118 L
200 gal757.0824 L
250 gal946.3529 L
500 gal1,892.71 L
750 gal2,839.06 L
1,000 gal3,785.41 L
5,000 gal18,927.06 L

Reverse lookup: US gallons in liters

  • 1 us gallon = 3.7854 liters
  • 2 US gallons = 7.5708 liters
  • 3 US gallons = 11.3562 liters
  • 4 US gallons = 15.1416 liters
  • 5 US gallons = 18.9271 liters
  • 6 US gallons = 22.7125 liters
  • 7 US gallons = 26.4979 liters
  • 8 US gallons = 30.2833 liters
  • 9 US gallons = 34.0687 liters
  • 10 US gallons = 37.8541 liters
  • 11 US gallons = 41.6395 liters
  • 12 US gallons = 45.4249 liters
  • 13 US gallons = 49.2104 liters
  • 14 US gallons = 52.9958 liters
  • 15 US gallons = 56.7812 liters
  • 16 US gallons = 60.5666 liters
  • 17 US gallons = 64.352 liters
  • 18 US gallons = 68.1374 liters
  • 19 US gallons = 71.9228 liters
  • 20 US gallons = 75.7082 liters
  • 21 US gallons = 79.4936 liters
  • 22 US gallons = 83.2791 liters
  • 23 US gallons = 87.0645 liters
  • 24 US gallons = 90.8499 liters
  • 25 US gallons = 94.6353 liters
  • 26 US gallons = 98.4207 liters
  • 27 US gallons = 102.2061 liters
  • 28 US gallons = 105.9915 liters
  • 29 US gallons = 109.7769 liters
  • 30 US gallons = 113.5624 liters

Common mistakes to avoid

Volume trips people up more than any other category: US and UK fluid ounces differ (29.57 vs 28.41 ml), US and UK gallons differ by 20%, a US pint is 473 ml while a British pub pint is 568 ml, and an Australian tablespoon is 20 ml, not 15. Always confirm which country a recipe comes from before converting.

Precision and rounding

The tables above round to a few decimal places for readability. When you need full precision — engineering drawings, scientific work, legal documents — use the exact factor 0.2641720524 and round only at the very end of your calculation. Rounding intermediate steps is the most common source of conversion drift, especially when several conversions are chained together.

Convert it instantly

Skip the arithmetic entirely: our free Liter to US gallon converter computes any value as you type, and the US gallon to Liter converter handles the reverse direction. For every other volume unit, see the complete volume conversion guide.

Frequently asked questions

How many US gallons are in one liter?

Exactly 0.264172 US gallons. This factor comes from the internationally agreed definitions of both units.

How do I convert US gallons back to liters?

Divide by 0.26417205 — or equivalently multiply by 3.78541178, since one us gallon equals 3.7854 liters.

Can I do this conversion in my head?

For estimates, round the factor: one liter ≈ 0.26 US gallons. That's usually close enough for shopping or travel; reach for the exact factor when precision matters.

What is 2.5 liters in US gallons?

2.5 liters equal 0.66043 US gallons. Multiply 2.5 by the factor 0.264172.

What is 500 liters in US gallons?

500 liters equal 132.086 US gallons (500 × 0.264172).

Where does the conversion factor come from?

Both units are legally defined against the same SI base unit (the liter), so the factor 0.2641720524 is a mathematical consequence of those definitions — it is exact, permanent, and the same everywhere in the world.

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