Monthly energy, charges, tax and annual cost

Electricity Bill Calculator

Estimate a monthly electricity bill, annual energy use, energy charge, fixed fees, tax and average daily cost from editable consumption and tariff assumptions.

Imperial and metric Rounded purchase quantities Cost estimate

Default project preview

$185.85

Energy charge

$162.00

Fixed and other charges

$15.00

Tax or surcharge

$8.85

Average daily cost

$6.19

Calculator

Build the material order

Your order will appear here

Enter the project details and calculate a rounded material estimate.

Input and output guide

What each value means

The labels and units below are part of this calculator’s visible methodology. Replace every default with measurements or product data from the actual project.

Average electricity use

Enter this project assumption in kWh/day. The current imperial default is 30 kWh/day.

Billing period

Enter this project assumption in days. The current imperial default is 30 days. Minimum: 1. Maximum: 366.

Energy rate

Enter this project assumption in per kWh. The current imperial default is 0.18 per kWh. Minimum: 0.

Fixed monthly charge

Enter this project assumption in a unitless value. The current imperial default is 15. Minimum: 0.

Other monthly charges

Enter this project assumption in a unitless value. The current imperial default is 0. Minimum: 0.

Tax or surcharge

Enter this project assumption in %. The current imperial default is 5 %. Minimum: 0. Maximum: 100.

How to read the outputs

Energy charge

0.18 per kWh. Default preview: $162.00.

Fixed and other charges

entered monthly fees. Default preview: $15.00.

Tax or surcharge

5%. Default preview: $8.85.

Average daily cost

estimated bill divided by days. Default preview: $6.19.

Annual electricity

daily use × 365. Default preview: 10,950 kWh.

Annualized cost

same daily use and tariff. Default preview: $2,261.17.

Methodology

Transparent calculation

BuildMeter converts every input to a consistent internal unit, applies the selected allowance, and rounds products up to whole purchasable units.

Billing energy = daily kWh × billing days. Bill = energy charge + fixed charge + other charges + tax or surcharge.

Related tools

Continue planning the project

FAQ

Electricity Bill Calculator questions

What rate should I enter for tiered pricing?+

Use the blended energy charge divided by billed kWh from a representative bill.

Does this include solar credits?+

Only when you reduce the entered daily grid use or enter a negative credit outside this simple calculator.

Why can the utility total differ?+

Utilities may apply time-of-use rates, demand charges, fuel adjustments, taxes and credits separately.

Built and reviewed by Liron Elimeleh

Liron Elimeleh, software engineer and founder of BuildMeter, develops the calculation logic, unit conversions, validation and visible assumptions. ELStudios maintains the source and public correction history.

About the author