Fuel Consumption Monitor Calculator

Measure real-world fuel use across every drive daily. Log odometer, fuel, price, and conditions easily. See averages, costs, and downloads in one dashboard cleanly.

Downloads
Export your session log anytime.

Add a trip / refuel entry

Fill distance and fuel. Odometer can auto-calc distance.
Reset Log

Advanced options (optional)

Tip: For best accuracy, record full-tank-to-full-tank distance and fuel.

Your fuel log summary

Session-based totals and overall efficiency.
Entries: 0 Rolling (last 5): L/100km

Total distance
— km
≈ — mi
Total fuel
— L
≈ — US gal
Overall efficiency
— L/100km
— km/L • — MPG (US)
Overall cost
— PKR
— per 100km
CO₂ estimate (typical): kg for logged fuel.

Trip log table

Review entries, compare efficiency, then export.
Date Distance Fuel L/100km km/L MPG (US) Cost Notes Action
No entries yet. Add your first trip above.

Note: The log is saved in your browser session. Closing the session clears it.

Example data table

Date Distance Fuel L/100km Cost Condition
2026-02-10 145.0 km 10.2 L 7.03 2950.00 PKR Mixed
2026-02-15 98.5 km 8.1 L 8.22 2380.00 PKR City
2026-02-21 210.0 km 13.6 L 6.48 3890.00 PKR Highway

These rows are examples only and are not added to your log.

Formula used

Core efficiency
  • L/100km = (Fuel_L ÷ Distance_km) × 100
  • km/L = Distance_km ÷ Fuel_L
  • MPG(US) = Miles ÷ US_Gallons
  • MPG(UK) = Miles ÷ UK_Gallons
Conversions & costs
  • km = miles × 1.609344
  • L = US_gal × 3.785411784
  • L = UK_gal × 4.54609
  • Cost_total = Fuel_L × Price_per_L
  • Cost/100km = (Cost_total ÷ Distance_km) × 100

Tip: Use consistent fill method (full-to-full) to reduce noise.

How to use this calculator

  1. After a trip or refuel, record distance and fuel used.
  2. If you have odometer readings, enter start and end.
  3. Select units exactly as shown on your receipt or dash.
  4. Add fuel price to calculate cost per trip and per 100km.
  5. Submit to save the entry and see results instantly.
  6. Review your log table, then download CSV or PDF.

Related Calculators

Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.