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.
- Constant current and an explicitly entered efficiency; electrode chemistry must be known.
Example Calculation
- Current: 2 A
- Time: 3600 s
- Molar mass: 63.546 g/mol
- Electrons per ion: 2
- Current efficiency: 100 %
2 A for 3600 s, M=63.546 g/mol and z=2 yield about 2.371 g at 100% efficiency.
Method references
Frequently asked questions
How do I use this calculator?
Enter current, time, molar mass, electrons per ion, current efficiency. The result updates automatically. Use Reset to restore the example values.
What method does it use?
mass=I t M efficiency /(z F), F=96485.33212 C/mol.. Constant current and an explicitly entered efficiency; electrode chemistry must be known.
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.