Evaluate measured potentials against trusted reference electrodes precisely. Switch scales, correct temperatures, and track offsets. Generate reliable conversions for laboratory analysis, calibration, and reporting.
1. Temperature-adjusted source reference:
E_source(T) = E_source,25 + [α_source × (T - 25)] / 1000
2. Temperature-adjusted target reference:
E_target(T) = E_target,25 + [α_target × (T - 25)] / 1000
3. Corrected measured potential:
E_corrected = E_measured + E_junction_correction / 1000
4. Potential versus SHE:
E_vs_SHE = E_corrected + E_source(T)
5. Potential versus target reference:
E_vs_target = E_vs_SHE - E_target(T)
Preset reference values are practical laboratory defaults. Verify exact potentials for your electrolyte composition, reference filling solution, and operating temperature.
| Measured Potential (V) | Source Reference | Target Reference | Temperature (°C) | Converted Result (V) |
|---|---|---|---|---|
| 0.152 | Ag/AgCl Sat KCl | SHE | 25 | 0.3490 |
| -0.085 | SCE | Ag/AgCl Sat KCl | 25 | -0.0410 |
| 0.410 | Cu/CuSO4 Sat | SHE | 25 | 0.7260 |
These rows illustrate typical conversions. Your exact result may differ with electrolyte composition, temperature, and actual reference calibration.
| Reference | Potential at 25 °C (V vs SHE) | Temperature Coefficient (mV/°C) | Note |
|---|---|---|---|
| Standard Hydrogen Electrode (SHE) | 0.000 | 0.00 | Reference zero point. |
| Silver/Silver Chloride, Saturated KCl | 0.197 | -0.70 | Common aqueous reference. |
| Silver/Silver Chloride, 3 M KCl | 0.210 | -0.73 | Widely used laboratory reference. |
| Saturated Calomel Electrode | 0.241 | -0.60 | Classic mercury reference. |
| Mercury/Mercurous Sulfate, Saturated K2SO4 | 0.640 | -0.70 | Useful in sulfate media. |
| Copper/Copper Sulfate, Saturated | 0.316 | -0.50 | Common in corrosion work. |
It converts a measured electrode potential from one reference scale to another. It also estimates temperature-adjusted reference values and applies an optional junction correction.
SHE is the standard zero reference. Reporting versus SHE makes literature comparisons easier and helps align results from different laboratories or instruments.
Yes. Many reference electrodes shift slightly with temperature. The calculator uses practical linear coefficients, which are often adequate for screening, reporting, and quick laboratory checks.
It lets you add a known liquid-junction correction before conversion. Enter the value in millivolts with its sign, based on your experimental convention.
Yes. Select Custom for the source or target. Then enter the 25 °C potential and the temperature coefficient you want applied.
No. Actual values depend on filling solution, concentration, contamination, and calibration state. Use your certified reference data whenever high accuracy matters.
Instrument software may use different sign conventions, stored offsets, proprietary reference tables, or automatic temperature corrections. Check the instrument manual and reporting basis.
The chart shows how converted potential changes with temperature. It also plots the equivalent value versus SHE across the same temperature range.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.