Formula
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations use standard floating-point arithmetic; exact integer and fraction tools identify their own precision rules.
- Mass-based dilution of measured dissolved-solids percentages with pure water; it does not prescribe caffeine intake.
Example Calculation
- Concentrate mass: 200 g
- Concentrate strength: 4 % dissolved solids
- Desired strength: 1.5 % dissolved solids
200 g concentrate at 4% solids diluted to 1.5% requires about 333.33 g water.
Frequently asked questions
How do I use this calculator?
Enter concentrate mass, concentrate strength, desired strength. The result updates automatically. Use Reset to restore the example values.
What method does it use?
final mass=concentrate mass × initial strength/target strength; added water=final−initial mass.. Mass-based dilution of measured dissolved-solids percentages with pure water; it does not prescribe caffeine intake.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.