1 oz to ml
1 fl oz ≈ 29.57 ml
1 US fluid ounce is approximately 29.57 milliliters.
How to convert 1 fl oz to ml
Use the formula ml = fl oz × 29.5735295625:
ml = 1 × 29.5735295625ml = 29.57353
So 1 fl oz = 29.57353 ml, or about 29.57 ml rounded.
Rounded values and quick estimate
- Rounded to a whole number: 30 ml
- Rounded to one decimal place: 29.6 ml
- Conversion factor: 1 US fluid ounce = 29.57 milliliters
Quick mental estimate: multiply by 30. For 1 fl oz that gives about 30 ml — off by 0.4265 ml (1.4%). Use the exact formula when precision matters.
1 oz in other units
- Milliliters
- 29.57 ml
- Liters
- 0.0296 L
- Teaspoons
- 6 tsp
- Tablespoons
- 2 tbsp
- US cups
- 0.125 cups
- US pints
- 0.0625 pt
- US quarts
- 0.0313 qt
- US gallons
- 0.007813 gal
- Cubic centimeters
- 29.57 cc
- Cubic inches
- 1.8 cu in
- Cubic feet
- 0.001044 cu ft
- Drops
- 591.47 drops
- Oil barrels
- 0.000186 bbl
- UK gallons
- 0.006505 UK gal
- Cubic meters
- 0.00003 m³
- Cubic yards
- 0.000039 cu yd
1 fl oz and nearby values
About us fluid ounces and milliliters
A US fluid ounce is 1/128 of a US gallon, about 29.57 ml. (A UK imperial fluid ounce is slightly smaller, 28.41 ml.)
A milliliter is one thousandth of a liter, equal to one cubic centimeter. It is used for drinks, medicine doses and cooking.
Related conversions
Frequently asked questions
What is 1 oz in ml?
1 US fluid ounce is about 29.57 milliliters (1 fl oz ≈ 29.57 ml).
How do you convert 1 fl oz to ml?
Apply ml = fl oz × 29.5735295625: ml = 1 × 29.5735295625, ml = 29.57353.
How many US fluid ounces is 29.57 ml?
29.57 ml is about 0.9999 US fluid ounces.