Oz to ml Converter

About This Tool

This tool converts fluid ounces (oz) to milliliters (ml) to support cooking, baking, and basic science workflows. It accepts a numeric value in oz and returns the equivalent ml, with an option to select the regional ounce standard. It is designed for individual quick checks as well as integration into recipes, lab notes, or product documentation where consistent liquid volume values are required.

Conceptually, the conversion is a linear scaling: ml = oz × factor. By default the tool uses US fluid ounce definitions (1 fl oz = 29.5735295625 ml). If UK fluid ounces are selected, the factor becomes 28.4130625 ml. The tool validates numeric input, ensures non-negative values, and can limit output precision. It supports decimals in input and returns an ml value formatted to the configured number of decimal places, enabling precise dosing and measurement records.

Who benefits: home cooks measuring ingredients, students learning unit math, lab technicians recording volumes, and product developers documenting formulations. Unique value comes from immediate, single-field usage with region-aware factors, eliminating the need to consult lookup tables. Core features include input validation, region selection, configurable precision, and a clean numeric output. Use cases include scaling a recipe, checking lab protocol volumes, or preparing documentation where exact liquid volumes are critical.

Limitations: weight-to-volume conversions or density-based calculations are outside scope; batch processing requires external integration; this tool handles only fluid ounces to milliliters.

Sign in to see all your usage