Electricity Cost Calculator
Estimate electricity cost, kWh use and appliance running cost from power, runtime, tariff and currency.
Production calculator hub
Use client-side calculators for energy, solar, backup power, EV charging, voltage drop, wiring context and practical electrical planning.
Fast start
Open the full calculator page for power, runtime, tariff and currency inputs. The calculator stays above the fold, while formulas, examples and methodology remain below.
These ten tools cover the main production flow: energy cost, solar sizing, backup runtime, EV charging and cable-planning estimates.
Estimate electricity cost, kWh use and appliance running cost from power, runtime, tariff and currency.
Estimate appliance cost using quantity, rated power, duty cycle, runtime, and tariff.
Estimate PV watts and whole-panel count from daily energy, peak sun hours, system losses and solar coverage.
Estimate simple solar payback from system cost, incentives, generation, and rates.
Estimate usable Wh and backup hours from Ah or Wh, voltage, battery count, depth of discharge, efficiency and load.
Estimate continuous and surge inverter size from load, surge, margin, and power factor.
Estimate UPS runtime from battery configuration, load, efficiency, and usable capacity.
Estimate EV charging energy, cost, and time from battery size, SOC, efficiency, tariff, and charger power.
Estimate DC, single-phase and three-phase voltage drop, percent loss and load voltage from cable size, length, current and material in simplified PF=1 mode.
Estimate conductor area from voltage drop only. This is not final cable selection.
This calculator provides an estimate for informational purposes only. It is not a certified engineering design, electrical safety approval, or professional installation recommendation. Always verify final decisions with a qualified professional and applicable local codes.