Tiered Electricity Bill Calculator
Allocate period electricity use across entered kWh price blocks, add one fixed charge and apply an entered tax percentage.
YOUR CALCULATION
Result
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Calculation steps
Work through one step at a time or reveal the complete calculation. The steps use your current inputs.
How to calculate
Calculate cumulative-block charges, add the period fixed charge once and multiply the subtotal by one plus the entered tax fraction.
Period bill=(Σ block kWh×price/kWh+fixed charge)×(1+entered tax)
Worked example
650 kWh at 0.15 for the first 300, 0.20 for the next 300 and 0.30 thereafter costs 120 for energy. A fixed 10 gives a period total of 130 before any entered tax.
Assumptions and input details
The entered bands apply to the entire selected billing period. No utility data, local tariff, time-of-use schedule, demand charge, minimum bill, rebate or billing-cycle proration is supplied. Decreasing block prices are allowed. Use one currency and a final unlimited * band.
Using this calculator
Can I enter my own problem?
Yes. Replace the example values with your own inputs. The result, calculation steps, tables and applicable diagrams update from those inputs. Blank or invalid values clear the result; example values are never silently substituted for missing inputs.
Are the results exact?
Results use floating-point arithmetic and displayed rounding. Read the formula, assumptions and any stated data precision before interpreting the result.
Is my input uploaded?
The calculation runs in your browser. No account, file upload or external AI service is required. Inputs are not saved between page reloads.
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