Electricity Bill Calculator • විදුලි බිල කැල්කියුලේටරය
Calculate your monthly CEB & LECO domestic electricity bill, PUCSL unit tariff slabs, subsidized 0-60 rates, Time of Use (ToU) EV charging tariffs, and household appliance costs.
Domestic Consumption Inputs
Enter your monthly meter units and billing days / මාසික විදුලි ඒකක ගණන සහ දින ගණන
Estimated Total Domestic Bill (ඇස්තමේන්තුගත මුළු බිල)
Block 03 (61 – 90 General Domestic)
Unit Slab Calculation Breakdown (ඒකක කාණ්ඩ විස්තරය)
Reduce just 15 units to stay at 60 units or below, and your bill drops from Rs. 1,570 to Rs. 700, saving Rs. 870!
තවත් ඒකක 15ක් ඉතිරි කර ඒකක 60 සීමාවේ රැඳී සිටියහොත් ඔබගේ විදුලි බිල රු. 1,570 සිට රු. 700 දක්වා රු. 870කින් අඩුවේ!
Official Sri Lanka Electricity Tariff Schedule (CEB & LECO)
The Public Utilities Commission of Sri Lanka (PUCSL) prescribes the tariff structure for all domestic and general purpose customers. Below is the full breakdown of domestic block tariffs currently in effect across Sri Lanka.
| Consumption Category | Unit Slab (Monthly) | Energy Charge (Rs. / kWh) | Fixed Charge (Rs. / month) |
|---|---|---|---|
| Subsidized Lifeline Tier (≤ 60 units/month) | 0 – 30 Units | Rs. 6.00 | Rs. 100.00 |
| 31 – 60 Units | Rs. 9.00 | Rs. 250.00 | |
| General Domestic Tier (> 60 units/month) | 0 – 60 Units | Rs. 15.00 | Rs. 400.00 (up to 90 U) |
| 61 – 90 Units | Rs. 18.00 | ||
| 91 – 120 Units | Rs. 30.00 | Rs. 550.00 | |
| 121 – 180 Units | Rs. 42.00 | Rs. 700.00 | |
| Above 180 Units | Rs. 65.00 | Rs. 1,500.00 |
Air Conditioner Optimization
Set air conditioner thermostats to 25°C or 26°C instead of 18°C–20°C. Each degree higher saves between 6% and 8% in cooling power consumption. Always clean the dust filters monthly.
Avoid 18:30 – 22:30 Peak Hours
Sri Lanka’s national grid relies on expensive thermal oil and diesel generation during the evening peak. Avoid running heavy appliances like dry irons, washing machines, and water pumps during these hours.
Replace Outdated Pumps & Bulbs
Replace traditional 60W filament bulbs with 7W or 9W LED lamps (85% power reduction). Service water pump impellers and check plumbing for underground pipe leaks which cause pumps to run continuously.
CEB & LECO Official Tariff Structure (විදුලි බිල සහ ගාස්තු ක්රමවේදය)
Domestic electricity tariffs in Sri Lanka are regulated by the Public Utilities Commission of Sri Lanka (PUCSL) and implemented by Ceylon Electricity Board (CEB) and LECO:
- Subsidized Lifeline Tier (0 – 60 Units): Monthly consumption up to 60 units is heavily subsidized (0-30 units @ Rs. 6/kWh, 31-60 units @ Rs. 9/kWh) with fixed charges between Rs. 100 - Rs. 250.
- General Domestic Tier (Above 60 Units): Once consumption passes 60 units, all previous units are charged under non-subsidized rates starting at Rs. 15/kWh, escalating up to Rs. 65/kWh for units exceeding 180.
- Time of Use (ToU) Tariff: For 3-phase domestic users with high usage or Electric Vehicles (EVs), ToU offers off-peak charging at Rs. 17.00/kWh during the night (22:30 – 05:30).
Pro-rata billing rule: If your billing period is not exactly 30 days (e.g. 33 days), slab unit allowances scale proportionally so you are not unfairly penalised.
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