Electricity Bill Calculator
Estimated electricity bill from units and tariff — slab-wise or flat rate
Slab rates (₹/unit) — edit as per your state
Bill Estimate
units · avg ₹/unit
Only an estimate — actual bills may include meter rent, subsidy, arrears and surcharges.
Electricity Bill Calculator — Complete Guide & Instructions
MakeCard Electricity Bill Calculator estimates a monthly power bill in the Indian style — slab-wise tariffs where each block of units is charged at its own rate — or a simple flat rate per unit. Add your state's slab rates, fixed charge, and electricity duty percentage, and the calculator shows a line-by-line breakup plus the effective per-unit cost. It helps households verify bills and budget before the meter reading.
How to Use Electricity Bill Calculator
- 1 Choose Slab-wise (India style) or Flat Rate mode.
- 2 Enter Units Consumed in kWh from your meter or last bill.
- 3 Edit the slab rates to match your state tariff — or type a flat ₹/unit rate.
- 4 Fill Fixed Charge and Electricity Duty %.
- 5 Read the slab-wise breakup, energy charges, duty, and the estimated bill total.
Key Features & Capabilities
- True slab-wise billing — each unit block charged at its own rate like Indian state DISCOMs.
- Four editable slabs pre-loaded with typical rates, plus an unlimited top slab.
- Flat-rate mode for simple tariffs and quick checks.
- Fixed charge and electricity duty (%) fields included in the total.
- Line-by-line breakup showing units × rate per slab.
- Average ₹/unit revealed so you can see your effective tariff.
Supported Formats & Specifications
| Parameter | Specification |
|---|---|
| Billing modes | Slab-wise (editable 4-tier tariff) and flat rate |
| Inputs | Units (kWh), slab rates, fixed charge ₹, duty % |
| Outputs | Energy charges, fixed charge, duty, estimated bill, avg ₹/unit |
Practical Everyday Use Cases
- Estimating next month's bill from the current meter reading.
- Verifying a DISCOM bill that looks higher than expected.
- Comparing the cost impact of crossing into a higher slab.
- Budgeting electricity costs for a rented flat or shop.
Pro Tips for Best Results
- Copy slab rates from your state electricity board's tariff order — defaults are typical values, not your exact rates.
- Crossing a slab boundary only charges the units inside that slab at the higher rate, not the whole bill.
- Actual bills may add meter rent, subsidy, arrears, and surcharges this estimate does not include.
Common Problems & Solutions
Match every slab rate and fixed charge to your DISCOM's tariff, and remember real bills may add meter rent, subsidies, or arrears.
Duty is calculated on energy charges plus fixed charge — some states compute it on energy only, so adjust if your state differs.
Privacy & Security
100% Client-Side Execution
Units and rates stay on your device — the estimate is computed in the browser with nothing stored.
Frequently Asked Questions
Everything you need to know about using Electricity Bill Calculator
Most states use slab tariffs: the first block of units costs one rate, the next block a higher rate, and so on. Fixed charges and electricity duty are added on top — exactly what this calculator models.
One unit equals one kilowatt-hour — a 1000 W appliance running for one hour consumes exactly one unit.
Slab pricing pushes later units into higher rates, and fixed charges spread across all units — the average ₹/unit shown includes all of this.
No — it estimates energy charges, fixed charge, and duty. State subsidies, fuel surcharges, and arrears are extra and vary by DISCOM.
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