How Much Does a Microwave Cost to Run?

Microwaves are energy-efficient for reheating and cooking small portions. They use significantly less electricity than a conventional oven for the same task.

Quick Summary

Typical Wattage

1,000W

1.0 kW

Est. Daily Cost

R1.25

0.5h/day

Est. Monthly Cost

R37.35

at R2.49/kWh

Calculate Your Microwave Electricity Cost

Adjust the values below to match your usage.

Hours per day

Days per month

Electricity tariff (R/kWh)

Number of appliances

Daily kWh

0.50 kWh

Monthly kWh

15.0 kWh

Cost Breakdown

Period	Cost
Per day	R1.25
Per week	R8.71
Per month	R37.35
Per year	R454.43

Tips to Reduce Your Microwave Electricity Cost

1.Use the microwave instead of the oven for small meals.
2.Cover food to retain moisture and reduce cooking time.
3.Keep the interior clean for maximum efficiency.
4.Defrost food in the fridge overnight where possible.

Compare With Other Kitchen Appliances

Stove Hob (per plate)

Frequently Asked Questions

How much electricity does a microwave use per month?

A typical microwave uses 1000W and, when used for 0.5 hours per day at R2.49/kWh, costs approximately R37.35 per month (15.0 kWh).

How many watts does a microwave use?

A typical microwave in South Africa uses approximately 1000 watts (1.0 kW). Actual wattage may vary by brand and model - check the rating plate on your appliance for the exact figure.

How can I reduce the electricity cost of my microwave?

Use the microwave instead of the oven for small meals. Cover food to retain moisture and reduce cooking time. See our full list of tips above for more ways to save.