Sri Lanka Electricity Bill Calculator
Free Sri Lanka electricity bill calculator with country-specific defaults and clear step-by-step results.
About Sri Lanka Electricity Bill Calculator
Estimates a monthly electricity bill from kWh usage, the per-kWh rate and any fixed standing charge.
Formula
Formula
Bill = usage (kWh) × rate + fixed fee
Worked example
With the default values below, Sri Lanka Electricity Bill Calculator returns Energy Cost of රු. 80.00. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Monthly Usage (kWh)minimum 0
- 400
- Rate per kWhminimum 0 LKR
- 0.2 LKR
- Fixed Monthly Feeminimum 0 LKR
- 10 LKR
Results
- Energy Cost
- රු. 80.00
- Total Monthly Bill
- රු. 90.00
- Daily Average
- රු. 2.95
Step by step
- 1Values used
- 2Formula
- 3Energy Cost= $80.00
- 4Total Monthly Bill= $90.00
- 5Daily Average= $2.95
Assumptions and limits
- The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
- Rates vary by tariff and provider in Sri Lanka — use the rate on your current bill.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Rates vary by tariff and provider in Sri Lanka — use the rate on your current bill.
Frequently Asked Questions
How does this calculator work?
Estimates a monthly electricity bill from kWh usage, the per-kWh rate and any fixed standing charge.
Are the figures specific to Sri Lanka?
Understanding your usage in kilowatt-hours and the rate makes it easier to cut costs or compare suppliers.
Related Calculators
Sri Lanka specifics
- Currency
- Rs LKRSri Lankan Rupee
- Region
- Asia
- Country code
- LK
- Amounts look like
- LKR 1,234,567.89
- Dates look like
- Mar 9, 2026
- Units
- metricWeek starts Monday
Results on this page are expressed in LKR (Sri Lankan Rupee). Figures are estimates for general planning — confirm current rates and thresholds with the relevant Sri Lanka authority before relying on them.