Convert Milliliter to US Gallon (mlgal (US))

The milliliter is the standard small-volume unit for cooking, pharmaceuticals, and laboratory measurements.

0.000264
1 ml0.000264 gal (US)NIST · BIPM accuracy

Milliliter to US Gallon Conversion Table

10 common values
MilliliterUS Gallon
1 ml0.000264 gal (US)
2 ml0.000528 gal (US)
5 ml0.001321 gal (US)
10 ml0.002642 gal (US)
20 ml0.005283 gal (US)
50 ml0.013209 gal (US)
100 ml0.026417 gal (US)
200 ml0.052834 gal (US)
500 ml0.132086 gal (US)
1,000 ml0.264172 gal (US)

How to Convert Milliliter to US Gallon Manually

Step by Step

Converting milliliters to US gallons is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

  1. 1
    Take your value in milliliters
    Start with the number of milliliters (ml) you want to convert.
  2. 2
    Multiply by 0.000264
    The conversion factor from ml to gal (US) is 0.000264. Multiply your value by this number.
  3. 3
    Read the result in US gallons
    The result is your value in US gallons (gal (US)).
Practical Examples
1 ml
equals
0.000264 gal (US)
5 ml
equals
0.001321 gal (US)
10 ml
equals
0.002642 gal (US)
25 ml
equals
0.006604 gal (US)
100 ml
equals
0.026417 gal (US)

Formula

Multiply the value in milliliters by 0.000264. For the reverse direction, multiply by 3,785.4118.

Forwardgal (US) = ml × 0.000264
Reverseml = gal (US) × 3,785.4118
Example: 10 ml × 0.000264 = 0.002642 gal (US)

Tips

Use these in everyday conversions
  • 1 ml = 1 cm³ exactly.
  • Medicine: teaspoon ≈ 5 ml, tablespoon ≈ 15 ml, shot glass ≈ 25 ml.
  • Measuring jugs marked in ml provide 2–5 ml accuracy; use a syringe below 10 ml.

Common Mistakes

Avoid these
  • Dosing liquid medication by kitchen spoon — spoons vary 3–8 ml. Use the supplied syringe.
  • Confusing ml (volume) with mg (mass) on medication labels — different units entirely.
  • Reading a "cc" measurement as cubic centimetre with different value — it is identical to ml.

About Milliliter and US Gallon

What is the Milliliter?

The milliliter equals one thousandth of a liter (0.001 L) and is the standard small-volume unit for cooking, pharmaceuticals, cosmetics, and laboratory work. One milliliter is exactly 1 cubic centimeter (1 cm³), a convenient relationship: 1 mL of pure water weighs 1 gram. The milliliter is the universal unit on medicine bottles (a typical cough syrup dose is 5 mL), cosmetics (a perfume bottle is 50–100 mL), and recipe measurements outside North America (a tablespoon is 15 mL, a teaspoon is 5 mL). Medical syringes are calibrated in mL, and IV drip rates are computed in mL per hour. The milliliter relates to the liter (1,000 mL = 1 L), the cubic centimeter (1 mL = 1 cm³ = 1 cc), the teaspoon (1 tsp = 5 mL), and the US fluid ounce (1 fl oz ≈ 29.57 mL).

  • Liquid medication dosing in syringes
  • Precise cooking and baking measurements
  • Laboratory reagent measurement
Real-world examples

A teaspoon holds about 5 ml. An espresso shot is 25–30 ml. An insulin pen delivers 0.1 ml increments.

What is the US Gallon?

The US liquid gallon equals exactly 3.785411784 liters and is the standard volume unit for fuel, beverages, milk, and household liquids in the United States. Defined as 231 cubic inches, the US gallon descends from the English wine gallon of 1707, which Britain replaced with the larger imperial gallon in 1824 — a divergence that left the United States with a different gallon than the rest of the English-speaking world. American gas stations price gasoline by the gallon (typical fill-up: 12–15 gallons), milk is sold in half-gallons and gallons, and many beverages come in fluid-ounce subdivisions of the gallon. The US gallon relates to the liter (1 gal ≈ 3.785 L), the quart (4 qt = 1 gal), the pint (8 pt = 1 gal), the cup (16 cups = 1 gal), and the imperial gallon (1 imp gal ≈ 1.201 US gal — about 20% larger).

  • US fuel pricing and consumption
  • US paint, oil and cleaning-product packaging
  • US beverage containers (1-gallon jugs of milk)
Real-world examples

US car tank ≈ 15 gallons (57 L). 1 US gallon of milk is a common grocery size (3.79 L). US paint often sold by the gallon.

Learn About Both Units

🧪 Reference

What is the Milliliter?

Read the unit page →
🧪 Reference

What is the US Gallon?

Read the unit page →

Milliliter to US Gallon FAQ

5 questions
How many US gallons in a milliliter?
One milliliter equals 0.000264 US gallons.
How do I convert milliliters to US gallons?
Multiply the milliliter value by 0.000264 to get the equivalent in US gallons.
What is 100 milliliters in US gallons?
100 milliliters equals 0.026417 US gallons.
Is a milliliter bigger than a us gallon?
No. 1 milliliter equals 0.000264 US gallons, so one milliliter is smaller.
How to convert milliliters to US gallons without a calculator?
Multiply by 0 for a quick estimate; use a calculator for precise results.

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