// multi-utility computation suite · offline · instant · precise
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sci.membrane-resting-potential Calculator
Calculates cell potential at non-standard conditions using the Nernst equation: E = E° − (RT/nF)ln Q. At 25 °C, E = E° − (0.0592/n)log Q — a 10× change in ion concentration shifts electrode potential by 59.2/n mV.
Inputs
Ion Outside Mm
Amount of solute per unit volume. Higher concentration = more solute dissolved.
Ion Inside Mm
Amount of solute per unit volume. Higher concentration = more solute dissolved.
Temperature C
Thermal state of the substance. Check whether the formula needs Celsius, Fahrenheit, or Kelvin (K = °C + 273.15).
Ion Valence
Reference formula or conversion factor shown for context.
Results
Nernst potential E (mV)
Sample size or count used in the calculation.
equilibrium potential
Sample size or count used in the calculation.
E = RT/zF × ln([C_out]/[C_in])
Sample size or count used in the calculation.
Na⁺ example
Sample size or count used in the calculation.
K⁺ example
Reference formula or conversion factor shown for context.