Convert fractional cooking measures between named metric, US customary and Imperial liquid volumes. Scale recipes without confusing cup or spoon conventions.
Reference: NIST volume definitions ↗. Results use the named definitions and the context you supply.
All calculations run locally in your browser. Your values are never uploaded and no input history is saved. Explicit units and assumptions make the result easier to check. No account or remote processing is needed.
Conventions differ. This tool names exact nominal capacities: metric cup 250 mL, 240 mL cup, US customary cup about 236.588 mL, and a clearly labeled 10-Imperial-fluid-ounce cup. Metric and Australian tablespoons also differ.
No. The 240 mL option is explicitly a 240 mL convention. The US customary cup is eight US liquid fluid ounces, or 236.5882365 mL. Choose the convention used by your recipe.
No. That requires ingredient density and packing information. Use Mass / Volume with Density and supply an appropriate density. Fluid ounces here describe volume, not mass.
No. Calculations stay in this browser page and inputs are not persisted. Only the theme preference is saved. Copy and report download happen only when you choose.
