AC Electricity Cost Calculator

Estimate AC electricity spending from rated power, hours and average load. Enter your own values below to see estimated electricity cost and check the method behind it.

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Your inputs

Change the example values to match your situation.

Your result

Let’s work it out.

Fill in your inputs and select Calculate.
Your result and breakdown will appear here.

How this calculator works

Energy = rated watts ÷ 1000 × hours per day × days × average load factor. Cost = energy × entered tariff.

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What is AC Electricity Cost Calculator?

AC Electricity Cost Calculator helps you estimate AC electricity spending from rated power, hours and average load.

The main result is estimated electricity cost, with a breakdown of electricity used. The formula, example and assumptions below explain how to interpret it.

How to use AC Electricity Cost Calculator

Use the example to get familiar with the form, then enter your own figures. Any rates in the example are illustrative. Check the field labels and units before calculating.

  1. Gather rated power (W), hours switched on per day (hours), average duty / load factor (%), number of days and electricity rate per kWh (₹). Use values from the same situation or reporting period.
  2. Replace the example rated power with your own value, then complete the other fields. Check the displayed units.
  3. Select Calculate and read estimated electricity cost with its result breakdown. Change one input and calculate again to compare a second scenario. Reset restores the original example.
  • Enter rated power in W, at least 0. Decimals are accepted.
  • Enter hours switched on per day in hours, at least 0 and at most 24. Decimals are accepted.
  • Enter average duty / load factor in %, at least 0 and at most 100. Decimals are accepted.
  • Enter number of days, at least 1 and at most 3660. Use a whole number.
  • Enter electricity rate per kWh in ₹, at least 0. Decimals are accepted.

AC Electricity Cost Calculator: a worked example

With the inputs below, the result is ₹2,880 (estimated electricity cost). Follow the example, then replace these illustrative values with your own.

Example inputs and output
Input or outputExample value
Rated power (W)1,500 W
Hours switched on per day (hours)8 hours
Average duty / load factor (%)100 %
Number of days30
Electricity rate per kWh (₹)₹8
Estimated electricity cost₹2,880
Electricity used360 kWh

Understanding the AC Electricity Cost result

Read estimated electricity cost alongside electricity used. These describe different parts of the same calculation.

Displayed results use a readable number of decimal places. When checking a result by hand, keep extra precision until the last step. To compare scenarios, change one input at a time and keep the others fixed.

  • Example Electricity used: 360 kWh

AC Electricity Cost Calculator: assumptions and common mistakes

A useful estimate starts with the right inputs. Check the following assumptions and limits before applying the result to your situation.

  • Match factors to your location and reporting period. A result covers the sources you entered, not an independently verified full footprint.

For wider guidance, visit GHG Protocol calculation guidance. The formula and scope of this specific tool are stated on this page.

AC Electricity Cost Calculator FAQs

What does AC Electricity Cost Calculator calculate?

AC Electricity Cost Calculator helps you estimate AC electricity spending from rated power, hours and average load. Its main output is estimated electricity cost in ₹.

What inputs do I need for AC Electricity Cost Calculator?

You need rated power (W), hours switched on per day (hours), average duty / load factor (%), number of days and electricity rate per kWh (₹). Use the field labels and units to match your figures to the formula.

Which formula does AC Electricity Cost Calculator use?

Energy = rated watts ÷ 1000 × hours per day × days × average load factor. Cost = energy × entered tariff.

What is a worked example for AC Electricity Cost Calculator?

Example inputs: Rated power: 1,500 W; Hours switched on per day: 8 hours; Average duty / load factor: 100 %; Number of days: 30. Keep the remaining inputs as shown in the worked-example table. The result is ₹2,880 (estimated electricity cost).

How should I enter rated power?

Enter rated power in W, at least 0. Decimals are accepted.

How do I choose hours switched on per day?

Enter hours switched on per day in hours, at least 0 and at most 24. Decimals are accepted. The example uses 8 hours; replace it if your circumstances differ.

How should I read estimated electricity cost?

Read estimated electricity cost alongside electricity used. These describe different parts of the same calculation.

Why might my AC Electricity Cost Calculator result differ from my records?

Match factors to your location and reporting period. A result covers the sources you entered, not an independently verified full footprint. Differences in entered values, units or rounding can also change the comparison.

Can I compare two scenarios in AC Electricity Cost Calculator?

Yes. Note your first estimated electricity cost, change rated power or another input, and select Calculate again. Editing a field clears the old result so it is not mistaken for a new calculation.

Is AC Electricity Cost Calculator free, and where are my inputs calculated?

This calculator is free to use without signing in. Its formula runs in your browser; calculator inputs are not sent to a calculation API. The inputs reset to the example values when you reset the form or start a fresh page.