Enter the earlier month and the high-bill month to split the increase across electricity, water, and other utility charges before opening a detailed diagnosis.
Electric bill
$226
All-in rate
$0.246 per kWh
Best next check
Cooling hours
Enter an earlier month and the high-bill month. Use bill totals plus usage to see which section deserves the first review.
Total bill change
$160
$282 before, $442 now.
Electric change
$78.00
53% bill change; 28% kWh change.
Water change
$68.00
79% bill change; 50% gallon change.
First path
Mixed bill
The increase is split across multiple sections. Compare electric usage, water usage, fixed fees, and billing days before focusing on one appliance or leak.
Electric explains 49% of the increase, water explains 43%, and other utilities or fixed fees explain 9%.
Read the result
A spike calculator is most useful when it prevents guessing. If one bucket explains most of the increase, use the matching tool before calling the whole bill abnormal.
A 35-day bill can look like a usage spike even when daily usage stayed close to normal.
Estimated, corrected, or skipped reads can push usage into one statement and hide it from another.
A higher total is not always higher use. Fixed fees, sewer, taxes, riders, and balances can move independently.
Compare kWh, all-in electric rate, delivery charges, customer fees, and seasonal electric loads.
Separate gallons, sewer, base fees, stormwater, minimum bills, and meter-read issues before assuming a leak.
Use the bill explainer when the spike is a delivery charge, sewer charge, rider, fee, tax, or adjustment.
Separate current usage from past-due balances, payment plans, late fees, deposits, and catch-up amounts.
Use the full diagnosis guide to separate billing days, usage, rates, fixed fees, sewer, meter reads, and payment issues.
Open pageCompare the spike against a state-based utility estimate after identifying the bill section that changed.
Open pageNormalize the high bill against the normal bill before blaming usage, rates, or leaks.
Open pageCheck whether an estimated read, corrected read, or catch-up true-up made one bill look unusually high.
Open pageCompare kWh, total electric dollars, and all-in electric rate between two months.
Open pageCompare gallons, sewer, fixed fees, and all-in water cost between two bills.
Open pageSee how customer charges, base fees, minimums, taxes, and recurring lines affect the bill even when usage is normal.
Open pageRead electric, water, sewer, fixed, delivery, stormwater, and tax line items before calling the utility.
Open pageRebuild the current bill across electricity, water, sewer, fixed fees, and recurring utilities.
Open pageShort answers for search visitors and bill-checking moments.
Compare the high bill with an earlier bill across electric dollars, water dollars, other utility charges, kWh, and gallons. The section with the largest increase is usually the first place to investigate.
A mixed spike can happen during hot or cold weather, move-in months, longer billing periods, guest stays, irrigation, or when fixed fees changed. Compare daily usage before comparing only total dollars.
Review all-in rates, delivery, sewer, stormwater, trash, taxes, minimum charges, estimated reads, and account fees. A bill can rise even when kWh or gallons barely change.