POWER COSTS, MADE CLEAR

What does your
electricity cost?

A practical South African electricity calculator. Add your appliances, enter the rate from your latest bill, and see the running cost in rands.

Free to use· No sign-up· Estimate stays in your browser

YOUR HOME, YOUR NUMBERS

Build your estimate

Start with the rate on your electricity bill. You can add as many appliances as you like.

Choose a rate source

Pick a source or enter your own rate.

Electricity provider

Manual rate

Enter the energy charge from your latest bill or tariff schedule. Your provider’s tariff may include other charges.

Energy rate

Unit

Choose the unit shown on your bill. c/kWh is converted to rands; c/kW is a different power charge and should not be entered here.

Add appliances

Use the rating label where you can.

Example kettle values are prefilled. Check your appliance label and edit the daily-use estimate.

For appliances that cycle on and off, enter average running time rather than the full time they’re plugged in.

Your numbers stay on this device

A BETTER ESTIMATE STARTS HERE

Small details make a big difference.

Electricity tariffs aren’t always one flat price. Here’s how to get a more useful estimate.

Use your actual rate

Check the energy or consumption charge on your latest bill. A rate from a neighbour may be different if you’re on a different tariff or supply area.

Check appliance wattage

Look for watts (W) on the appliance label or manual. A 1,000-watt appliance running for one hour uses about one kilowatt-hour.

Estimate real usage

Enter the hours the appliance is actively drawing power. For fridges, geysers and thermostatically controlled devices, use average running time.

PRACTICAL HELP

Make sense of your electricity costs.

Browse all guides

BILL BASICS

How to read your electricity bill

Find the energy rate and understand the other charges around it.

TARIFFS

Find the right municipal tariff

Check the tariff schedule against your address, account and meter.

COST ESTIMATES

Estimate an appliance’s running cost

Learn the simple watts, hours, days and rate calculation.

OFFICIAL SOURCES

Find your tariff schedule

Pick your provider above to open its current official tariff page, then enter the energy charge from that schedule or from your own bill. The calculator works the cost out from the rate you enter and the appliances you add.

Source links checked 10 Oct 2026·Rate entered from your own bill

EEskom direct customersOfficial tariffs and charges JCity Power · JohannesburgMunicipal tariff schedules CCity of Cape TownResidential electricity tariffs KCity of EkurhuleniMunicipal tariff schedules

Simple by designClear estimates, no account needed.

Made for South AfricaRand-based inputs and local tariff sources.

Private calculationsAppliance details aren’t uploaded.