Engineering Calculator

Microwave / OTG Electricity Calculator

Calculate microwave oven or OTG electricity cost based on minutes of use.

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Microwave / OTG Cost

Estimate short-duration high-power cooking load.

Live calculator

Fill what you know. If a value is unknown, keep the practical default and verify the nameplate later.

Appliance Wattage (W)

Minutes Per Use / Day

Days Per Month

Electricity Rate (â‚¹/kWh)

Use this page for microwave or OTG loads where short daily usage can still matter because the appliance is high wattage.

This is a preliminary planning estimate. For certified audits, use site measurement and nameplate readings.

Is this result exact?

It is an engineering estimate using user inputs. Exact result needs actual meter/nameplate data.

Can I use it for audit report?

Yes, as a preliminary calculation and supporting estimate.

Short usage is usually not a big bill problem. Reheating for a few minutes is different from long OTG baking sessions.

The result is a planning estimate. Use nameplate wattage, measured runtime and current tariff for professional-level accuracy.