Monthly Petrol Calculator
Use this monthly petrol calculator to estimate fuel required and petrol expense from your daily distance, vehicle mileage and local pump price. It supports kilometres, miles, litres, US gallons, Imperial gallons and your selected currency.
- 30-day projection
- Annual forecast included
- Bike, scooter, car, or truck
- 150+ currencies preset
Monthly Petrol Calculator
Enter a daily distance · review the 30-day projection · adjust for your travel days
Vehicle
Region
Trip
Motorcycle / Bike default: 30 km/day at 50 km/L.
Typical bike: 35–65 km/L.
Example PKR price: ₨ 280/L. Replace it with your local pump price.
Options
Splits the total cost across riders.
Cost
₨ 168.00
Petrol used
0.60 L
Per km
₨ 5.60
How to use it
Build a monthly fuel budget.
Enter the distance you normally travel in one day, choose kilometres or miles, select the vehicle and enter its real fuel efficiency. Add the petrol price in the matching litre or gallon unit. The result shows daily fuel use, a 30-day monthly projection, annual context and cost per distance unit.
If you travel fewer than 30 days, use: adjusted monthly result = 30-day result ÷ 30 × travel days. Keep commuting, weekend errands and occasional journeys separate when their daily distances differ.
Household budget
Calculate each vehicle separately, then add the results for one monthly household total.
Work schedule
Adjust the 30-day projection to the actual days you expect to commute this month.
Price update
Re-enter your pump price whenever it changes instead of relying on a stale average.
Reference
Compare vehicle fuel use carefully.
These profiles are illustrative inputs, not manufacturer claims. Your engine, traffic, load, route and maintenance can change mileage, so use an observed figure from several refills for a more useful monthly estimate.
| Vehicle | Mileage (km/L) | Daily cost · 30 km @ ₨ 280/L |
|---|---|---|
| Honda CD 70 | 55–65 | ₨ 140 |
| Honda CG 125 | 45–50 | ₨ 177 |
| Yamaha YBR 125 | 45–50 | ₨ 177 |
| Bajaj Pulsar 150 | 40–45 | ₨ 198 |
| Suzuki GS 150 | 38–42 | ₨ 210 |
| Honda Activa | 50–55 | ₨ 160 |
| Vespa LX | 42–48 | ₨ 187 |
| Yamaha Ray ZR | 48–52 | ₨ 168 |
| Suzuki Mehran | 18–22 | ₨ 420 |
| Suzuki Cultus | 14–17 | ₨ 542 |
| Toyota Corolla | 12–15 | ₨ 622 |
| Honda City | 13–16 | ₨ 579 |
| Honda Civic | 11–13 | ₨ 700 |
| Toyota Fortuner | 8–10 | ₨ 933 |
| Toyota Hilux | 9–12 | ₨ 800 |
| Honda BR-V | 12–14 | ₨ 646 |
Daily cost assumes a 30 km commute at ₨ 280/L. Override either in the calculator above for your actual numbers.
Visual comparison
Illustrative monthly petrol cost by vehicle
30 km daily distance × 30 days, using the price selected on this site.
- Bikeexample: 50 km/L₨ 5,040
- Scooterexample: 45 km/L₨ 5,600
- Carexample: 14 km/L₨ 18,000
- SUVexample: 11 km/L₨ 22,909
- Truckexample: 8 km/L₨ 31,500
Monthly cost for a 30 km × 30 days trip at ₨ 280/L. Live in your selected currency.
The formula
How monthly petrol expense is calculated.
Monthly distance = daily distance × travel days
Fuel required = monthly distance ÷ mileage in km/L
Monthly petrol cost = fuel required × price per litre
Cost per km = monthly petrol cost ÷ monthly distance
For L/100 km, fuel required = distance × L/100 km ÷ 100. For MPG, distance is converted to miles and divided by US or Imperial MPG. One mile is 1.609344 km; one US gallon is 3.785411784 litres; one Imperial gallon is 4.54609 litres. The two gallon types are not interchangeable.
Petrol cost formula
Cost = (Distance ÷ Mileage) × Price
Monthly commute example · 40 km/day · ₨ 280/L
Budget guide
Worked monthly petrol cost example
Suppose a car travels 40 km per day on 22 travel days, returns 14 km/L and petrol costs PKR 280 per litre. Monthly distance is 40 × 22 = 880 km. Fuel required is 880 ÷ 14 = 62.86 litres. Monthly petrol cost is 62.86 × 280 = PKR 17,600, and cost per kilometre is PKR 20. This is an estimate: different traffic, idling, detours or mileage will change the result.
Choose travel days, not a generic average
A calendar-month projection assumes the same entered distance on all 30 days. A commute budget should instead use the actual workdays for that month after weekends, leave, public holidays and remote-work days. If weekend travel follows a different pattern, calculate it separately and add it. This avoids treating an occasional trip as a repeated daily journey.
What changes monthly fuel consumption?
Monthly distance and petrol price have a direct effect, while real fuel efficiency reflects traffic, road gradient, short cold-engine journeys, long idling, speed, rapid acceleration, braking, vehicle load, towing, tyre pressure, air-filter condition, engine maintenance, weather and fuel quality. Record odometer distance and litres added across several full refills to get a more representative mileage input.
Update and review your petrol budget
Save the estimate at the start of the month and compare it with receipts at month-end. If actual expense differs, check distance, travel days, pump price and measured mileage before changing the budget. Practical ways to reduce unnecessary fuel use include combining nearby errands, avoiding avoidable idling, maintaining recommended tyre pressure, removing unnecessary load and using smooth acceleration where conditions allow. No fixed saving is guaranteed.
Limitations and page scope
The estimate assumes the entered mileage and fuel price remain constant. It cannot predict traffic, detours, seasonal price changes, odometer error, leaks or changes in vehicle condition. Currency is a calculation label and is not converted. This page is specifically for a recurring monthly petrol budget; use the daily commute calculator for one-day commuting detail and the trip petrol calculator for a particular one-way or return journey. A future annual calculator should cover year-specific schedules rather than duplicate this monthly page.
Methodology and accuracy
Calculations use full precision internally and round displayed fuel and cost values for readability. The user controls distance, mileage and petrol price; no live fuel-price or exchange-rate service is used. Review the calculation methodology for formulas, unit handling and assumptions. Last reviewed: 3 August 2026.
FAQ
Monthly petrol calculator questions
Answers about travel days, monthly projections, real mileage, units and fuel-budget scope.
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Compare petrol and CNG running costs using measured efficiency and local litre and kilogram prices.
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Specialty
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Cost per Mile Calculator
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Round Trip Calculator
Two-way trip petrol cost — automatically doubles distance and applies your mileage and price.
Vehicle Mileage Calculator
Calculate your vehicle's actual km/L or MPG from two consecutive fill-ups.
For drivers & riders
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Daily petrol expense for ride-share drivers. Plug in distance and trip count to see your fuel spend.
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Petrol expense for Foodpanda, Bykea, Cheetay riders — daily, weekly, monthly.
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Petrol expense calculator for taxi and commercial drivers, including margin per km.
Review your estimate
Plan this month's petrol expense.
Enter real mileage, the current pump price and a representative daily distance. Adjust the 30-day result for your actual travel days, and recalculate whenever the schedule or price changes.