ConvBolt — Unit ConverterFluid ounces to Milliliters Converter
Converting fluid ounces to milliliters is a multiplication by a fixed factor: 1 fl oz = 29.57353 ml. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.
Because one fluid ounce works out to 29.57353 ml, the milliliter is the noticeably larger unit of the two: a figure given in milliliter always carries a larger number than the same measurement in fluid ounce. A chart drawn in fl oz can hide that, so check which label the axis uses before you compare two readings.
When a container size is certified in milliliters but you are dosing in fluid ounces, it pays to convert from the certified figure rather than from a rounded label.
The conversion factor used here is 29.57353 ml per fluid ounce (5 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 fl oz a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 0.03381402 fl oz per ml, the exact reciprocal, so a round trip through both pages returns your original number.
Fluid ounces to Milliliters formula
Use this formula to convert any fluid ounce value to milliliters:
Worked example: 100 fl oz × 29.57353 = 2957.353 ml.
Fluid ounces to Milliliters conversion table
| Fluid ounces (fl oz) | Milliliters (ml) |
|---|---|
| 0.5 fl oz | 14.78676 ml |
| 1 fl oz | 29.57353 ml |
| 2 fl oz | 59.14706 ml |
| 5 fl oz | 147.8676 ml |
| 10 fl oz | 295.7353 ml |
| 20 fl oz | 591.4706 ml |
| 50 fl oz | 1478.676 ml |
| 100 fl oz | 2957.353 ml |
| 500 fl oz | 14786.76 ml |
| 1000 fl oz | 29573.53 ml |
How to convert fluid ounces to milliliters
Multiply the fluid ounce value by 29.57353 to get the equivalent in milliliters. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.
If you need the opposite direction, use the Milliliters to Fluid ounces converter instead of dividing by hand; both pages use the same source factors. For every other fl oz conversion in one place, see the fl oz conversion hub.
Frequently asked questions
How many milliliters are in 1 fluid ounce?
1 fluid ounce = 29.57353 ml.
What is 100 fluid ounces in milliliters?
100 fl oz = 2957.353 ml.
Is converting fluid ounces to milliliters the same as milliliters to fluid ounces?
No — the direction changes the multiplier. The reverse conversion (1 ml = 0.03381402 fl oz) is on the Milliliters to Fluid ounces page.
Related conversions
Try the ConvBolt Unit Converter for any other volume unit, browse the Volume conversions, or read our conversion guides.