Instant conversion
Oz to ML Converter (Fluid Ounces to Milliliters)
1 US fluid ounce = 29.5735 milliliters. Multiply fluid ounces by 29.5735.
- 1 US fluid ounce = 29.5735 milliliters. Multiply fluid ounces by 29.5735.
- Reverse: 1 ml = 0.0338135 fl oz
- A US fluid ounce is 1/128 of a US gallon, about 29.57 ml. Real-world anchor: a single espresso shot is about 1 fluid ounce.
Common fl oz to ml conversions
| fl oz | ml |
|---|---|
| 0.5 | 14.79 |
| 1 | 29.57 |
| 2 | 59.15 |
| 3 | 88.72 |
| 5 | 147.9 |
| 10 | 295.7 |
| 20 | 591.5 |
| 50 | 1479 |
| 100 | 2957 |
| 200 | 5915 |
| 500 | 14787 |
| 1000 | 29574 |
How this conversion works
1 US fluid ounce = 29.5735 milliliters. Multiply fluid ounces by 29.5735.
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Why this conversion is exact
The exact factor behind this page: 1 fl oz = 29.5735 ml. That value is a defined standard, not a measurement, so every conversion on this page is exact up to the digits shown. The most common practical error is mixing up which direction the factor runs: multiply when going from fl oz to ml, divide when returning.
Rounding is display-only. The converter keeps full precision internally, so chained conversions (this unit to another and back) return to the starting value without drift, which hand-rounded tables cannot promise.
What you are converting
US fluid ounce
A US fluid ounce is 1/128 of a US gallon, about 29.57 ml. Real-world anchor: a single espresso shot is about 1 fluid ounce.
Milliliter
A milliliter is 1/1,000 of a liter. Real-world anchor: a standard medicine cup is often 5 ml.
Why convert and when you would use this
European recipes and skincare labels use ml; US bottles use fl oz. This is the bridge.
Worked example
Worked example: 10 fl oz × 29.5735 = 295.7 ml.
Rounding and accuracy
Use 2–4 decimal places for everyday tasks; keep more for engineering or lab precision.
Frequently asked questions
How do you convert fl oz to ml?
1 US fluid ounce = 29.5735 milliliters. Multiply fluid ounces by 29.5735.
What is 1 fl oz in ml?
1 fl oz equals 29.5735 ml.
How do you convert back from ml to fl oz?
Use the related ml to fl oz page.