CEB Electricity Bill Calculator
Calculate your monthly electricity bill based on CEB tariff slabs
CEB & LECO Bill Calculator
Same PUCSL-approved tariff applies to both licensees.
Check your meter reading or previous bill for units consumed
Have your meter readings? Enter them here
Units = present - past. Reading dates fill the billing period automatically.
Days on the bill — block allowances are prorated (default 30)
Estimated Bill
Rs. 2,789.75
Average: Rs. 27.90 per unit
Slab Breakdown
Each block of units is billed at its own rate — deeper blocks cost more per unit.
- Block 1 · 0–60 kWhRs. 14.00/kWh60 of 60 kWh used60 × Rs. 14.00 = Rs. 840
- Block 2 · 61–90 kWhRs. 20.00/kWh30 of 30 kWh used30 × Rs. 20.00 = Rs. 600
- Block 3 · 91–120 kWhyour usage ends hereRs. 28.00/kWh10 of 30 kWh used10 × Rs. 28.00 = Rs. 280
- Block 4 · 121–180 kWhRs. 44.00/kWhnot used
- 10 fewer units saves Rs. 902.57
vs April 2026 tariff: +Rs. 1.75 (0.1%)
Verified 2026-09-27 — agrees with the official PUCSL calculator on 1704 of 1704 reference cases
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Rates verified
Time-of-Use (TOU) Rates
| Period | Hours | Rate (Rs./kWh) |
|---|---|---|
| Peak Hours | 6:30 PM - 10:30 PM | 106.00 |
| Day Off-Peak | 5:30 AM - 6:30 PM | 47.00 |
| Night Off-Peak | 10:30 PM - 5:30 AM | 33.00 |
TOU metering can save money if you shift usage to off-peak hours.
Time-of-use is an optional metered tariff — your provider installs a special meter that tracks peak and off-peak units separately. Typically offered to higher-usage homes; you apply to CEB or LECO to switch.
Energy Saving Tips
- Set air conditioner temperature to 24-26°C for optimal efficiency
- Unplug devices when not in use to avoid standby power consumption
- Use natural ventilation when possible instead of fans/AC
- Wash clothes in full loads to maximize washing machine efficiency
Embed this calculator
Add this CEB & LECO bill calculator to your site — free. Paste this iframe anywhere:
<iframe src="https://www.calclk.com/embed/ceb-bill" width="100%" height="640" style="border:0" loading="lazy" referrerpolicy="strict-origin-when-cross-origin" title="CEB & LECO Bill Calculator — calcLK"></iframe>CEB Domestic Electricity Tariff Slabs (PUCSL, effective 11 May 2026)
CEB Domestic Electricity Tariff Slabs (PUCSL, effective 11 May 2026)The Ceylon Electricity Board uses a block tariff system for domestic consumers with three consumption bands (0-60, 61-180 and above 180 kWh/month). Higher consumption means higher per-unit rates, encouraging energy conservation. Domestic and religious rates are verified against the PUCSL-approved 11 May 2026 tariff table; commercial, industrial and hotel modes are not yet verified.
| Consumption Block (kWh/month) | Unit Rate (Rs./kWh) | Fixed Charge (Rs./month) | Typical Monthly Bill |
|---|---|---|---|
| Monthly consumption of 0-60 kWh | |||
| 0-30 units | Rs. 5.00 | Rs. 80 | ~Rs. 236 |
| 31-60 units | Rs. 9.00 | Rs. 210 | ~Rs. 646 |
| Monthly consumption of 61-180 kWh | |||
| First 60 units | Rs. 14.00 | — | — |
| 61-90 units | Rs. 20.00 | Rs. 400 | ~Rs. 1,887 |
| 91-120 units | Rs. 28.00 | Rs. 1,000 | ~Rs. 3,364 |
| 121-180 units | Rs. 44.00 | Rs. 1,500 | ~Rs. 6,585 |
| Monthly consumption above 180 kWh | |||
| First 180 units (flat) | Rs. 32.50 | Rs. 2,500 | — |
| Above 180 units | Rs. 100.00 | — | ~Rs. 15,744 (at 250 units) |
Time-of-Use (TOU) Rates: Peak (6:30-10:30 PM): Rs. 106/kWh · Day (5:30 AM-6:30 PM): Rs. 47/kWh · Off-Peak (10:30 PM-5:30 AM): Rs. 33/kWh · Fixed charge Rs. 2,500/month
* PUCSL Annex-2 tariff table, effective 11 May 2026 — applies to EDL and LECO consumers. Example bills include the 2.5% SSCL levy; no fuel adjustment charge currently applies.
Example: Domestic consumer using 150 units
Sample Inputs
What This Calculator Does
This calculator estimates your CEBCeylon Electricity Board — the main state electricity utility electricity bill based on units consumed. It applies the correct tariff slabs, fixed charges, and taxes to give you an accurate bill estimate before your actual bill arrives.
- Calculates bills for domestic and religious consumers against the current PUCSLPublic Utilities Commission of Sri Lanka — regulator for electricity, water and other utilities tariff (general purpose, industrial and hotel modes are marked unverified pending rate-table confirmation)
- Applies the PUCSLPublic Utilities Commission of Sri Lanka — regulator for electricity, water and other utilities-approved tariff effective 11 May 2026
- Includes fixed charges and SSCLSocial Security Contribution Levy — 2.5% turnover-based levy introduced in 2022 (no fuel adjustment charge currently applies)
- Shows Time-of-Use (TOUTime-of-Use — metering that bills electricity at different rates by time window) rate comparison
- Estimates appliance-level consumption
Inputs and Assumptions
Assumptions
- - PUCSLPublic Utilities Commission of Sri Lanka — regulator for electricity, water and other utilities-approved tariff rates effective 11 May 2026 apply
- - Standard metering (not TOUTime-of-Use — metering that bills electricity at different rates by time window)
- - Rate-2/Rate-3 demand-metered tariffs (maximum-demand charges) are modelled in the engine but not selectable on this page yet
- - No arrears or adjustments
- - No fuel adjustment charge currently applies
- - SSCLSocial Security Contribution Levy — 2.5% turnover-based levy introduced in 2022 applies as 2.5% of the levy-inclusive bill value (billed value ÷ 97.5 × 2.5); electricity is exempt from VATValue Added Tax — consumption tax charged at each stage of sale
Frequently Asked Questions
Related Resources
Sources & methodology
Part of the Utilities & Rates collection
How we calculate
PUCSL electricity tariff
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Methodology verified 2026-09-25 against PUCSL electricity tariff · Attribution: CalcLK
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