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.
- Final-solution mass fraction, not salt as a percentage of water alone. This arithmetic does not establish preservation or curing safety.
Example Calculation
- Water mass: 1000 g
- Salt as percent of final solution: 5 %
1000 g water needs about 52.632 g salt to make a solution that is 5% salt by total mass.
Frequently asked questions
How do I use this calculator?
Enter water mass, salt as percent of final solution. The result updates automatically. Use Reset to restore the example values.
What method does it use?
salt=water × salt fraction/(1−salt fraction).. Final-solution mass fraction, not salt as a percentage of water alone. This arithmetic does not establish preservation or curing safety.
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.