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.
- Textbook concentration/pressure convention: Kc uses mol/L and Kp uses atm. Δn counts gaseous stoichiometric coefficients only; not a conversion of dimensionless activity-based constants.
Example Calculation
- Kc numerical value: 1
- Temperature: 300 K
- Gas mole change Δn: 1
Kc=1, T=300 K and Δn=1 give Kp≈24.6172 in the textbook convention.
Frequently asked questions
How do I use this calculator?
Enter kc numerical value, temperature, gas mole change δn. The result updates automatically. Use Reset to restore the example values.
What method does it use?
Kp=Kc(RT)^Δn with R=0.08205736608 L·atm/(mol·K).. Textbook concentration/pressure convention: Kc uses mol/L and Kp uses atm. Δn counts gaseous stoichiometric coefficients only; not a conversion of dimensionless activity-based constants.
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.