32 kWh/day, $0.14/kWh, 30 days, $0 delivery, 0% tax
- Monthly kWh = 960
- Energy cost ≈ $134.40
- Total ≈ $134.40
finance calculator
Electricity Bill Calculator
Estimate your electric bill from daily kWh use, rate, billing days, delivery fees, and taxes.
Results
- Monthly kWh
- 960.00
- Energy cost
- $134
- Delivery/fixed fees
- $0
- Taxes/fees amount
- $0
- Estimated total bill
- $134
How to use this calculator
- Enter average daily kWh use.
- Enter your rate per kWh and billing days.
- Add delivery/fixed fees and optional tax/fee percentage.
- See monthly kWh, energy cost, fees, taxes, and total bill.
Inputs explained
- Average daily kWh
- Daily usage; divide last bill’s kWh by billing days or read your meter.
- Rate per kWh
- Your energy charge per kWh (from your plan/bill).
- Billing days
- Number of days in the billing cycle.
- Delivery / fixed fees
- Base or customer charges not tied to usage.
- Taxes/fees (%)
- Optional percent applied to subtotal; set to 0 if unknown.
How it works
Energy cost = daily kWh × rate × billing days.
Subtotal = energy cost + delivery/fixed fees. Taxes/fees (if any) apply to the subtotal.
Formula
Monthly kWh = Daily kWh × Billing days Energy cost = Monthly kWh × Rate Subtotal = Energy cost + Delivery Tax/fees = Subtotal × Tax% Total bill = Subtotal + Tax/fees
When to use it
- Estimating this month’s bill from your typical daily kWh.
- Comparing time-of-use or supplier plans by plugging in different rates.
- Budgeting for higher usage months (summer AC, winter heating) by raising daily kWh.
Tips & cautions
- If you have a monthly kWh estimate, divide by days to get daily kWh, then multiply back—same result.
- Time-of-use plans vary by hour; this is a flat-rate estimate. Use your weighted average rate if possible.
- Delivery and customer charges often stay fixed—enter them to avoid underestimating total cost.
- Assumes a flat kWh rate; does not model tiered or time-of-use pricing.
- Ignores demand charges for commercial accounts.
- Taxes/fees are simplified as one percentage; actual bills may itemize several surcharges.
Worked examples
45 kWh/day, $0.18/kWh, 30 days, $15 delivery, 7% tax
- Monthly kWh = 1,350
- Energy cost ≈ $243.00
- Subtotal with delivery ≈ $258.00
- Tax ≈ $18.06
- Total ≈ $276.06
Deep dive
This electricity bill calculator multiplies your daily kWh by rate and billing days, then adds delivery fees and optional taxes to estimate your total bill.
Use it to compare supplier plans, budget for high-usage months, or sanity-check a utility bill with a quick, flat-rate estimate.
FAQs
- Can I use monthly kWh instead of daily?
- Yes. Divide by days to get daily, or just set daily = monthly/30 and adjust days to your billing cycle.
- Does this handle time-of-use pricing?
- No. Use your average blended rate or compute a weighted average for your usage pattern.
- What about tiered rates?
- This is a flat-rate estimate. For tiers, estimate a blended rate or compute tiers separately.
- Are delivery charges included?
- Enter them in the delivery/fixed fees field. Some utilities roll delivery into the rate; others separate it.
- Commercial demand charges?
- Not included. This tool is aimed at residential flat-rate estimates.
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Estimates only. Actual bills may include tiered rates, time-of-use pricing, surcharges, or demand charges. Check your utility bill for exact terms.