Coffee dilution calculator
Work out concentrate and dilution water for a target measured coffee strength.
Concentrate must be stronger than the diluent. The target must be above diluent strength and no stronger than the concentrate. Change the input or settings to update your result. Results update as you type. Up to 1,000,000 characters.
Your result
How to use Coffee dilution calculator
- Enter the measurements and assumptions for this recipe or plan.
- Review the calculated quantities and their stated basis.
- Download the report and verify it against your measured result.
Useful next steps
Preserve the dissolved solids
Enter concentrate, target and diluent TDS on the same mass basis. With a zero-strength diluent, 400 g at 4% TDS needs about 742.86 g water to reach 1.4%.
Start from concentrate or drink size
Use all an existing concentrate batch, or specify a final drink mass to calculate both parts. Nonzero diluent strength is included; milk composition and melting ice are not guessed.
Save the result
Download CSV and a text or JSON report with the calculation and its assumptions. Processing stays on your device. Check measurements and selected units before using the result.