How this calculator works
- This page plots the published Sri Lanka fuel-price revisions across the timeline so users can compare fuel movements visually.
- Use the calculator to pick a fuel type and enter monthly litres. The page multiplies the current scraped price by your litres to estimate monthly spend.
- The pie chart splits the monthly fuel spend into Sri Lanka-specific components: import cost, taxes, processing, dealer margin, overhead and finance costs, and CPC margin.
- The trend chart and the table below keep the revision history in a readable format for quick checking and sharing.
Worked example
In the latest point shown here, Petrol 92 is LKR 294.00 per litre, Petrol 95 is LKR 356.00, Auto Diesel is LKR 277.00, and Kerosene is LKR 180.00.
Important assumptions
- This page focuses on Petrol 92, Petrol 95, Auto Diesel, and Kerosene because they are the most common public reference prices.
- The chart is a revision timeline, not a daily market feed.
- Petrol 92 and Petrol 95 use the supplied petrol composition percentages, while Auto Diesel and Kerosene use the supplied diesel composition percentages.
- Official retail revisions can change, so the latest published fuel revision should be checked before making a pricing decision.
FAQ
Are these calculators free?
Yes. lankacalculator tools are free to use and designed to be quick to access without sign-up.
How accurate are the results?
The calculators use clear assumptions and formulas, but results are estimates and should be checked against official documents or provider terms.
Can I use this on mobile?
Yes. The layout is built to work cleanly on phones, tablets, and desktops.
Do you store my inputs?
No account is required for these tools, and calculator inputs are not stored as user profiles in this v1 setup.