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Convert Milliliters to Imperial fluid ounces

1 milliliter is 0.04 fl oz (UK). One milliliter is exactly 0.0351950797279 imperial fluid ounces.

One milliliter is 0.03519508 imperial fluid ounces. To convert milliliters to imperial fluid ounces, multiply by 0.03519508; to go the other way, divide by 0.03519508 or multiply by 28.413062. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 130. One thousandth of a liter, and exactly one cubic centimeter.

Factor checked against the defining standard · How we check

Imperial fluid ounces
0.04 fl oz (UK)
Milliliters × 0.03519508
1 * 0.03519510.035 fl oz (UK)

1 milliliter in every volume unit

1 milliliter expressed in every volume unit
UnitValueExact factor
US teaspoons0.2028841362 tsp× 0.202884136211
US tablespoons0.0676280454 tbsp× 0.0676280454037
US fluid ounces0.0338140227 fl oz× 0.0338140227018
US cups0.004226752838 cup× 0.00422675283773
US pints0.002113376419 pt× 0.00211337641887
US quarts0.001056688209 qt× 0.00105668820943
US gallons0.0002641720524 gal× 0.000264172052358
milliliters (as entered)1 ml—
liters0.001 L× 0.001
imperial gallons0.0002199692483 gal (UK)× 0.000219969248299
imperial quarts0.0008798769932 qt (UK)× 0.000879876993196
imperial pints0.001759753986 pt (UK)× 0.00175975398639
imperial fluid ounces0.03519507973 fl oz (UK)× 0.0351950797279
imperial gills0.007039015946 gi (UK)× 0.00703901594557
cubic millimetres1,000 mm³× 1,000
cubic centimetres1 cm³× 1
cubic inches0.06102374409 in³× 0.0610237440947
cubic feet0.00003531466672 ft³× 0.0000353146667215
cubic yards0.000001307950619 yd³× 0.00000130795061931
cubic metres0.000001 m³× 0.000001

Factors are entered by hand from NIST Handbook 130 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

The same converter answers this pair however it is written: millilitres to imperial fluid ounces is the British spelling of the same units — the metre and the litre are spelled that way outside the United States and the quantity does not change.

How do you convert milliliters to imperial fluid ounces? The converter and the working

  1. 1.Take the measurement in milliliters.
  2. 2.Multiply by 0.03519508 — that is how many imperial fluid ounces fit in one milliliter.
  3. 3.To go back the other way, divide by 0.03519508, or multiply by 28.413062.

Worked example: 25 milliliters to imperial fluid ounces

Formula
ml × 0.03519508 = fl oz (UK)
Arithmetic
25 × 0.03519508 = 0.88 fl oz (UK)
Answer
25 ml = 0.88 fl oz (UK)

The factor is rounded for display; the figure above is computed from the full value.

Milliliters to imperial fluid ounces conversion table

Milliliters to imperial fluid ounces conversion table
MillilitersImperial fluid ounces
1 ml0.04 fl oz (UK)
2 ml0.07 fl oz (UK)
3 ml0.11 fl oz (UK)
4 ml0.14 fl oz (UK)
5 ml0.18 fl oz (UK)
6 ml0.21 fl oz (UK)
7 ml0.25 fl oz (UK)
8 ml0.28 fl oz (UK)
9 ml0.32 fl oz (UK)
10 ml0.35 fl oz (UK)
12 ml0.42 fl oz (UK)
15 ml0.53 fl oz (UK)
20 ml0.7 fl oz (UK)
25 ml0.88 fl oz (UK)
50 ml1.76 fl oz (UK)
100 ml3.52 fl oz (UK)
200 ml7.04 fl oz (UK)
300 ml10.56 fl oz (UK)
500 ml17.6 fl oz (UK)
1000 ml35.2 fl oz (UK)
2000 ml70.39 fl oz (UK)
5000 ml175.98 fl oz (UK)
10000 ml351.95 fl oz (UK)

What is a milliliter?

One thousandth of a liter, and exactly one cubic centimeter.

What is an imperial fluid ounce?

One 160th of an imperial gallon, 28.4130625 ml exactly. The US fluid ounce is one 128th of a smaller gallon at 29.57 ml, so the two ounces differ by about 4% in the opposite direction to the gallons.

How many imperial fluid ounces are in a milliliter?

One milliliter is 0.03519508 imperial fluid ounces. Going the other way, one imperial fluid ounce is 28.413062 milliliters. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.

Every volume unit here

The whole group — 20 units with their symbols and the size of each one in liters — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a milliliter.

Source: NIST Handbook 130 — US customary liquid measure

Cite this page

APA
Rule Calculator. (2026). Convert Milliliters to imperial fluid ounces. Rule Calculator. https://rulecalculators.com/convert/milliliter-to-imperial-fluid-ounce
MLA
"Convert Milliliters to imperial fluid ounces." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/milliliter-to-imperial-fluid-ounce.
Chicago
Rule Calculator. "Convert Milliliters to imperial fluid ounces." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/milliliter-to-imperial-fluid-ounce.

The date is when the figures on this page were last checked against their source, not the day you opened it. Add your own access date if your style needs one.

Questions people actually ask

How many imperial fluid ounces are in a milliliter?
0.03519508. One 160th of an imperial gallon, 28.4130625 ml exactly. The US fluid ounce is one 128th of a smaller gallon at 29.57 ml, so the two ounces differ by about 4% in the opposite direction to the gallons.
How do I convert imperial fluid ounces back to milliliters?
Divide by 0.03519508, or multiply by 28.413062 — they are the same operation.

Other volume conversions

Imperial fluid ounces to milliliters — the same conversion the other way.

Calculators that work in volume