Here’s what you need to calculate your fuel consumption: Fill your tank to the maximum with fuel. Additional fuel consumption (over base load) = 3200 /3300 * 0.72 = 0.70 gallons /hr *We’re assuming the computer would be turned off when the heater is on to stay within the continuous load limit of the generator. First, you need to fill up your motorcycle’s fuel tank. If you don't have a trip odometer, record the number of miles on your car as "Starting Mileage." Another way we measure this is on an engine dyno we calculate Brake Specific Fuel Consumption BSFC. The issue is what we care about when we calculate fuel consumption and fuel efficiency. If you measured in kilometers and liters, you should instead divide fuel used by kilometers traveled and multiply the result by 100 to get "liters per 100 kilometers". How To Calculate Your Fuel Consumption. Please consider supporting our work with a contribution to wikiHow. If you do not, you will have to use an approximation. This does not represent a big difference in fuel consumption per power unit between most normal naturally aspirated diesel engines, while turbocharged engines are not significantly better. This chart approximates the fuel consumption of a diesel generator based on the size of the generator and the load at which the generator is operating at. However, if you define efficiency as covering the greatest distance given a certain fuel amount, then the US researcher would be correct. How to calculate combined fuel economy in Litres per 100Km You get the liters and you divide it by the kms you’ve driven and then you multiply it by 100. Proceed with journey until the end. For example, if you used 25 gallons of gas, and drove 500 miles during that time, then your average fuel consumption would be 20 miles per gallon (500 miles / 25 gallons = 20 mpg). https://www.gigacalculator.com/calculators/fuel-consumption-calculator.php. Record the current odometer reading, then reset the trip to zero. Because climbing uphill takes more fuel, your fuel consumption would look much lower than it normally is. Since AC uses gasoline, using it will diminish your fuel consumption. A car's fuel consumption is a measure of miles driven per gallon of gas. Thanks to all authors for creating a page that has been read 457,711 times. To calculate fuel consumption, start by writing down how many miles you have on your car and then filling up the gas tank. Otherwise, this is the exact same thing in the instructions. Approved. The best time to record is right after you fill your car with gas. To calculate the fuel consumption, simply divide the number of gallons of diesel required to fill the excavator's fuel tank by the number of hours that the machine has worked. The French will see that for type A the average is 0.625 while for type B it is 0.5 and will conclude that type B is more efficient than type A, as the car will use less fuel to cover the same distance. LP gas and natural gas contain different amounts of energy, so the conversion factor is different. In addition, explore hundreds of calculators including a gas mileage calculator, horsepower calculator, and many others addressing topics such as math, finance, fitness, health, and more. With the help of this Microsoft Excel Formula you can Calculate Fuel Consumption. On a dynamometer, engines seem to oper… If your odometer now says 10,250 for example, subtract 10,000. Directions: To apply these formulas to your boat, “…plug in its horsepower rating and multiply it by the specific fuel consumption average, then divide the product by the fuel specific weight.”* Formula To Estimate Maximum Engine Fuel Consumption Gallon Per Hour (GPH) = (specific fuel consumption x HP)/Fuel Specific Weight These are very useful when estimating your fuel costs and can help you predict your expenses easier on a future trip. If you are using gallons per 100 mi to measure consumption, then the formula for calculating the amount of fuel needed is: Fuel = Distance / 100 x Consumptionper 100 mi For example, if the distance is 300 miles and the consumption is 5 gallons per 100 miles, you will need 300 / 100 x 5 = 15 gallons of gas. how do you calculate fuel consumption from brake horsepower? You can only do that if you recorded the mileage on the odometer from the last time you tanked. Include your email address to get a message when this question is answered. The French will get it right by multiplying 200 x 0.625 = 125. One cubic-foot of natural gas contains 1075 BTUs of energy. In this case, 86% of readers who voted found the article helpful, earning it our reader-approved status. You do not need to fill your car all the way up each time. But who is right in the above example? To learn how to find the average fuel consumption for your vehicle, scroll down! well - it does depend on you definition of fuel consumption. Answer Save. After driving for an hour over 100 km, how much fuel did l consume? ". The fuel consumption rate for many makes of Diesel Engines can be found in a range between 0.380 & 0.450 lbs/hp hour; 172 & 181 grams/hp hour; 231 & 243 grams/kW hour. By signing up you are agreeing to receive emails according to our privacy policy. highway fuel consumption and city drive consumption could replace Car 1 and Car 2 in the above table and produce the same result. The two researchers would come to different conclusions as they are using different metrics! Will track and see how realistically it, "Liked the fuel consumption check using the odometer reset, then tracking the mileage over time to get a reality, "I have now understood fuel usage and its calculation to mileage covered! By using this service, some information may be shared with YouTube. It depends on your car make and model and the engine RPM (revolution speed) and other factors. However, gas burners are not 100-percent efficient. This article has been viewed 457,711 times. Some cars have on-board computers, but they are not always accurate. How to calculate the fuel consumption of a motorcycle Fill up your motorcycle’s fuel tank. Calculating your car’s fuel consumption To make sure the numbers are as accurate as possible when calculating fuel consumption, follow these steps below: Fill up your car until the self-trigger mechanism clicks (work from a full tank) Zero your trip meter Every dollar contributed enables us to keep providing high-quality how-to help to people like you. The formula is right there in the terminology: miles per gallon. wikiHow is a “wiki,” similar to Wikipedia, which means that many of our articles are co-written by multiple authors. Traditional method of fuel consumption Calculator by Car: To do the test as per traditional method then follow steps as listed below. Image: Real world fuel consumption model FCX-2. 1 decade ago. In such a case the French researcher is correct, as the average is misleading the US researcher. Only turn off your car if you're absolutely certain that it's better to turn it off (e.g. Make sure you are filling... Record the odometer’s reading. Generators size calculators So, if your car goes 500km by consuming 60 liters of fuel, the consumption rate will be: 60 x 100 / 500 = 12 It means that your car will … wikiHow marks an article as reader-approved once it receives enough positive feedback. This would calculate out to be around 0.85 – 0.87 lambda. The starting amount is 12,500 because the person did not reset the odometer to 0 before he started. Keep track of all of the miles you drive on the clock from your starting point all the way to your arrival point. To apply these formulas to your boat, just plug in its horsepower rating and multiply it by the specific fuel consumption average, then divide the product by the fuel specific weight. How fuel consumption is calculated. Cost can be set in your own currency since it has no direct relation with written formulas. "Very good and simple. This free fuel cost calculator estimates the fuel cost of a trip based on fuel efficiency, distance, and gas price using various units of measurement. For an easier comparison, we can plot the fuel consumption values function of engine power, for both models, on the same graph. (Litres used X 100) ÷ km travelled = Litres per 100km. When the tank is almost empty, refill it and write down how many gallons of gas you needed and how many miles you've driven since the last time you filled up. 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