Fuel Cost Calculator

Q: What is the formula used in a fuel cost calculator?

The standard formula is: Fuel Cost = (Distance ÷ Mileage) × Fuel Price per Litre For electric vehicles: EV Running Cost = (Distance ÷ Range) × Battery Capacity × Electricity Tariff per Unit This formula provides an estimate of fuel or charging expenses based on your vehicle's efficiency and local energy prices.

Fuel Cost Calculator is a smart and easy-to-use tool that helps you estimate your vehicle running expenses and household cooking gas costs with accuracy. Whether you own a petrol car, diesel SUV, CNG vehicle, electric vehicle (EV), or use an LPG cylinder at home, this fuel cost calculator allows you to calculate fuel expenses based on distance travelled, mileage, fuel prices, electricity tariffs, and LPG cylinder rates. With real-time fuel price data from major Indian cities, users can compare petrol, diesel, CNG, EV, and LPG running costs and make informed decisions about daily commuting, long-distance travel, cooking gas budgets, and monthly transportation expenses. The calculator provides a detailed breakdown of fuel cost per kilometre, daily fuel expenditure, monthly fuel expenses, annual running costs, and per-cylinder LPG consumption. Ideal for car owners, fleet operators, business users, households, and frequent travellers, this vehicle and LPG fuel cost calculator helps optimize travel planning and manage transportation and cooking expenses efficiently. Use our fuel consumption calculator today to compare fuel costs and discover the most economical option for your needs.

Fuel Price

₹ per litre

Distance per day

Mileage

km / litre

Battery Capacity

kWh

Cylinder Type

Cylinder Price

₹ per cylinder

One Cylinder Lasts

Fuel Cost

₹537 / Day

Cost per km ₹5.37
Petrol Required 5.56 litres

Monthly Cost

₹16,120

Yearly Cost

₹1,96,127

Check Fuel Price in your City Click here

Formulas & Real-Time Calculations

Our calculator uses straightforward, transparent formulas used by automotive engineers and financial planners alike:

Petrol / Diesel
Daily Cost = (Distance ÷ Mileage) × Fuel Price

Example: 40 km ÷ 15 km/L × ₹104.94 = ₹279.84/day.
Monthly: ₹8,395. Yearly: ₹1,02,141.

CNG
Daily Cost = (Distance ÷ km/kg) × CNG Price/kg

Example: 40 km ÷ 22 km/kg × ₹73.59 = ₹133.80/day.
Monthly: ₹4,014. Yearly: ₹48,837.

Electric Vehicle
Energy/day = (Distance ÷ Range) × Battery kWh
Cost = Energy × ₹/kWh

Example: (30 ÷ 200) × 30 kWh × ₹10 = ₹45.00/day.
Monthly: ₹1,350. Yearly: ₹16,425.

LPG (Cooking Gas)
Daily Cost = Cylinder Price ÷ Days One Cylinder Lasts
Monthly Cost = Daily Cost × 30
Yearly Cost = Daily Cost × 365
Cylinders/Year = 365 ÷ Days One Cylinder Lasts

Example (Domestic 14.2 kg): ₹941.50 ÷ 30 days = ₹31/day.
Monthly: ₹942. Yearly: ₹11,455. Cylinders/Year: 12.

Example (Commercial 19 kg): ₹3,113.50 ÷ 20 days = ₹156/day.
Monthly: ₹4,670. Yearly: ₹56,821. Cylinders/Year: 18.

How to Use the Fuel Cost Calculator

Our Fuel Cost Calculator makes it easy to estimate your vehicle running expenses and LPG cooking gas costs in just a few simple steps. Whether you drive a petrol, diesel, CNG, or electric vehicle (EV), or use an LPG cylinder at home, you can quickly calculate your daily, monthly, and yearly costs based on current fuel prices, cylinder rates, and your usage habits.

Step 1: Enter the Distance You Travel

Start by entering the distance you drive, either as a one-way trip, daily commute, or total journey distance. Accurate distance data helps generate precise fuel cost estimates. (For LPG, you can skip this step and follow the dedicated LPG instructions below.)

Step 2: Select Your Fuel Type

Choose the fuel type used by your vehicle or household:

Petrol
Diesel
CNG
Electric Vehicle (EV)
LPG (Cooking Gas)

The calculator automatically applies the latest fuel prices, electricity rates, or LPG cylinder prices for your selected option.

Step 3: Choose Your City

Select your city from the available list. Fuel and LPG prices vary across India, and choosing the correct city ensures accurate calculations based on local petrol, diesel, CNG, electricity, or LPG cylinder rates.

Step 4: Enter Vehicle Efficiency

Provide your vehicle's mileage or efficiency:

Petrol/Diesel/CNG vehicles: Enter mileage in km/litre or km/kg.
EVs: Enter battery range or energy consumption details.

Step 5: Review Your Fuel Cost Breakdown

The calculator instantly displays:

Fuel cost per kilometre
Cost for the entered trip distance
Daily fuel expense
Monthly fuel expenditure
Annual running cost

Additional Steps for Electric Vehicles (EVs)

Provide your EV's battery capacity and average range per full charge. This helps estimate charging expenses and running costs more accurately.

Enter Electricity Tariff

Input your electricity cost per unit (kWh) based on your residential or commercial electricity bill.

Compare EV vs Petrol, Diesel, and CNG Costs

Use the results to compare EV charging costs with traditional fuel expenses and identify the most economical transportation option for your needs.

By following these simple steps, you can accurately calculate fuel expenses, compare vehicle running costs, and plan your transportation budget more effectively.

How to Use the LPG Cost Calculator

Calculating your LPG cooking gas expenses is quick and simple. Instead of mileage and distance, the LPG calculator works on your cylinder price and how long one cylinder lasts in your home or business. Follow these steps to estimate your daily, monthly, and yearly LPG cost along with the number of cylinders you use each year.

Step 1: Select the LPG Tab

Choose the LPG option from the fuel type tabs to switch the calculator to cooking gas mode.

Step 2: Choose Your City

Select your city to load the latest local LPG cylinder rates.

Domestic and commercial LPG prices differ from city to city across India.

Step 3: Select Cylinder Type

Pick the cylinder type that matches your usage:

Domestic (14.2 Kg) – standard household cooking gas cylinder.
Commercial (19 Kg) – used by restaurants, hotels, shops, and businesses.

Step 4: Enter Cylinder Price

Enter the price you pay per cylinder. The calculator pre-fills the current city rate, but you can adjust it to match the exact amount on your latest receipt.

Step 5: Enter How Long One Cylinder Lasts

Select how many days a single cylinder typically lasts for you (for example, 30 days for an average household). This determines your daily consumption.

Step 6: Review Your LPG Cost Breakdown

The calculator instantly shows:

LPG cost per day
Monthly LPG cost
Yearly LPG cost
Number of cylinders used per year

For example, a domestic 14.2 kg cylinder priced at ₹941.50 that lasts 30 days works out to roughly ₹31 per day, ₹942 per month, ₹11,455 per year, and about 12 cylinders annually.

Petrol vs Diesel vs CNG vs EV: Which is Cheaper to Run in India?

With rising fuel prices and increasing adoption of electric vehicles, many Indian car buyers wonder whether petrol, diesel, CNG, or EVs offer the lowest running costs. While the answer depends on fuel prices, driving patterns, and vehicle efficiency, EVs and CNG vehicles generally provide the most economical cost per kilometre, while petrol vehicles remain the most expensive to run for regular commuters.

Petrol vs Diesel Running Cost

Diesel vehicles typically offer better fuel efficiency than petrol cars, making them more economical for high-mileage drivers. However, higher vehicle prices and maintenance costs often offset some of the fuel savings. For drivers covering more than 20,000 km annually, diesel vehicles may still provide long-term cost advantages.

CNG vs Petrol: Which Saves More Money?

CNG vehicles are among the most cost-effective options for urban commuters. Compared with petrol cars, CNG vehicles can reduce fuel expenses by nearly 40% to 50%, making them an attractive choice for daily city driving and commercial usage.

EV vs Petrol Cost in India

Electric vehicles currently offer the lowest running cost among all vehicle categories. Depending on local electricity rates, charging an EV can cost up to 70% less than refuelling a comparable petrol vehicle. EVs also benefit from lower maintenance requirements, further reducing ownership costs.

Which Fuel Type Should You Choose?

Choose Petrol if you drive occasionally and prefer lower upfront vehicle costs.
Choose Diesel if you frequently travel long distances and require higher torque.
Choose CNG if your priority is reducing monthly fuel expenses for city driving.
Choose an EV if you want the lowest running costs, lower maintenance, and environmentally friendly transportation.

For the most accurate comparison, use our Fuel Cost Calculator to compare petrol, diesel, CNG, and EV running costs based on your city, vehicle mileage, distance travelled, and local fuel prices.

Domestic vs Commercial LPG: Understanding Your Cooking Gas Costs

LPG (Liquefied Petroleum Gas) is the most widely used cooking fuel in Indian homes and businesses. Knowing the difference between domestic and commercial cylinders helps you budget accurately and avoid overpaying. Our LPG cost calculator lets you estimate the exact daily, monthly, and yearly cost of your cooking gas based on the current cylinder price in your city.

Domestic LPG Cylinder (14.2 Kg)

The 14.2 kg domestic cylinder is the standard choice for household cooking. Prices are set by oil marketing companies and revised periodically. For an average family using one cylinder per month, the daily cost is low, making LPG an affordable everyday cooking fuel.

Households can also benefit from government subsidy schemes where applicable.

Commercial LPG Cylinder (19 Kg)

The 19 kg commercial cylinder is used by restaurants, hotels, canteens, tea stalls, and other businesses. It is priced higher per cylinder and per kilogram than the domestic variant. Because commercial users consume gas faster, tracking daily and monthly LPG costs is essential for managing operating expenses and pricing menus correctly.

How to Reduce Your LPG Consumption

Use a pressure cooker to reduce cooking time and gas usage.
Keep burners and regulators clean for an efficient blue flame.
Cook on low to medium flame and avoid keeping burners on unnecessarily.
Use flat-bottomed utensils that match the burner size.
Thaw frozen food before cooking and soak lentils in advance.

By tracking how long each cylinder lasts and entering your local price into the LPG calculator, you can clearly see how small habit changes lower your monthly and yearly cooking gas bill.

Factors That Affect Your Vehicle's Fuel Efficiency

Fuel efficiency plays a crucial role in determining your overall vehicle running costs. Even small changes in driving habits and vehicle maintenance can significantly improve mileage and reduce fuel expenses. Whether you drive a petrol, diesel, CNG, or electric vehicle, understanding the factors that impact fuel consumption can help you save money and maximize efficiency.

1. Tyre Pressure

Incorrect tyre pressure is one of the most common reasons for poor fuel efficiency. Underinflated tyres create higher rolling resistance, forcing the engine to work harder.