Convert Us Fluid Ounces to Milliliters

Instantly convert US fluid ounces (fl oz) to milliliters (mL). Enter a value to see the result and the conversion formula.

Category
Value
Result

Suggested conversions

Quickly convert units of weight, volume, length, temperature, area, data, speed and time. Results update instantly as you type.

How our Us Fluid Ounces to Milliliters unit converter works

To ensure maximum accuracy when converting Us Fluid Ounces to Milliliters, our calculator uses a scientific pivot method. Instead of relying on a potentially inaccurate direct conversion, the system first converts floz into the base unit of the International System (the cubic meter), then recalculates the result into ml. This approach drastically reduces rounding errors.

About this conversion

The US fluid ounce (approx 29.57 mL) is the standard for American beverages, infant formula, and medication dosing cups.

When to use this conversion

Use this to understand the exact size of US coffee cup sizes (like Starbucks 'Tall'), or to accurately dose baby formula.

Formula

Milliliters (mL) = Us Fluid Ounces (fl oz) × 29.57

Tip: You can swap units and convert decimals. Results are rounded for readability.

Examples

Us Fluid Ounces (floz) Milliliters (ml)
1 floz 29.57 ml
2 floz 59.14 ml
5 floz 147.85 ml
10 floz 295.7 ml
20 floz 591.4 ml
50 floz 1478.5 ml
100 floz 2957.0 ml
250 floz 7392.5 ml
500 floz 14785.0 ml
1000 floz 29570.0 ml

FAQ

How much is a Starbucks 'Venti' in mL?

A US Venti cold drink is 24 fl oz, which is a massive 710 mL.

How do I measure baby formula in ounces?

Baby bottles are clearly marked. 1 fluid ounce equals about 30 mL of water for formula mixing.