Electricity Savings Calculator

Estimate how much a reduction in electricity use could save each month and each year. You'll need your latest bill: your monthly usage in kWh and your rate per kWh.

Your estimate

Enter your usage and rate to see your estimate.

How this calculator works

Current monthly cost = monthly kWh × electricity rate
Monthly savings = current monthly cost × reduction % ÷ 100
Annual savings = monthly savings × 12
Annual kWh reduction = monthly kWh × reduction % ÷ 100 × 12

Example: 900 kWh × $0.18 = $162.00 a month. A 10% reduction saves $16.20 a month, or $194.40 a year, and 1,080 kWh a year.

Assumptions and limits

Actual savings depend on your usage patterns, your utility's rate structure, and other factors.
The calculator uses one flat rate. Tiered, time-of-use, and demand pricing can make real savings higher or lower.
Fixed monthly charges, taxes, and fees are not included — they usually don't fall when usage does — so "current monthly cost" is the usage portion of your bill, not the total.
The reduction percentage is your estimate, not a promise about any product or habit change, and the calculation assumes today's rate for the whole year.

This is an illustrative estimate, not a quote, a guarantee, or financial advice.

Your numbers stay in your browser — they are not sent to or stored by PocketWiseLab.

Next steps

Read How to Lower Your Electric Bill: 12 Practical Ways to Save Money to decide which changes are realistic for your home.
Check whether your utility offers time-of-use rates, rebates, or a home energy audit before buying new equipment.
Compare kWh (not just dollars) on future bills to see whether your changes are working.