Energy Calculators

Connecticut electric bill calculator

Estimate a monthly electricity bill in Connecticut from your usage and the state’s average residential price.

A Connecticut household using the state average of 704 kWh a month (2025) would pay about $172.55 a month at the August 2026 average price of 24.51¢/kWh (EIA).

Pre-fills the average price (Aug 2026) and typical use (EIA).

kWh

Average for Connecticut: 704 kWh/month (2025, EIA). Your bill shows your actual use.

¢/kWh
Estimated monthly bill
$172.55
Per year
$2,071
Monthly bill at 24.51¢/kWh
Monthly useBill
500 kWh$122.55
750 kWh$183.83
1,000 kWh$245.10
1,500 kWh$367.65
2,000 kWh$490.20

Formula: monthly bill = kWh used × average price per kWh. EIA’s average price already includes fixed monthly charges, spread over all kWh.

Inputs used: use: 704 kWh/month; rate: 24.51¢/kWh; state: Connecticut.

These are estimates, not financial advice.

Source: U.S. Energy Information Administration (Aug 2026). About our data

Typical monthly bill
$172.55704 kWh × 24.51¢/kWh
vs U.S. typical bill
+8.7%U.S.: $158.72
Rank (1 = highest bill)
10thof 51

Connecticut bills at common usage levels

Monthly useBill at 24.51¢/kWh
500 kWh$122.55
750 kWh$183.83
1,000 kWh$245.10
1,500 kWh$367.65
2,000 kWh$490.20

Average monthly bill over the last 12 months

Connecticut average residential electric bill per customer by monthConnecticut average bill: $173 in Sep 2025, $204 in Aug 2026. Low $145, high $245.$100$150$200$250$300Nov 2025Feb 2026May 2026Aug 2026
· dollars per customer per month
Show data table
MonthConnecticut average bill
Aug 2026$204
Jul 2026$222
Jun 2026$174
May 2026$146
Apr 2026$173
Mar 2026$202
Feb 2026$243
Jan 2026$245
Dec 2025$217
Nov 2025$166
Oct 2025$145
Sep 2025$173

Source: U.S. Energy Information Administration (Aug 2026). About our data

States with similar typical bills

How we calculate

bill = kWh × average price per kWh. Typical use is Connecticut’s 2025 residential sales divided by residential customers and 12 months. The monthly chart uses each month’s sales per customer × that month’s price.

See the methodology for details.

Frequently asked questions

What is the average electric bill in Connecticut?

About $172.55 a month for a household using the Connecticut average of 704 kWh (2025) at the August 2026 price of 24.51¢/kWh. That is +8.7% versus the U.S. figure calculated the same way ($158.72).

When are Connecticut electric bills highest?

Over the last 12 months with published data, the average residential bill was highest in January 2026 ($245.31) and lowest in October 2025 ($145.07), based on EIA sales, customers and prices.

Does this include fixed charges and taxes?

EIA’s average price is total residential revenue divided by kWh sold, so fixed customer charges are included, spread over all kWh. Taxes and fees collected on behalf of governments may not be fully included, so actual bills can be somewhat higher.

Data last updated: