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Fuel Cost Calculator

Calculate the fuel cost for any trip or monthly driving in Vietnam. Enter your distance, fuel consumption, and current petrol price to get instant results.

Written by CalcVault Editorial Team
km
L/100km
₫/L

Fill in the fields above and click Calculate to see your results.

How to use

To estimate the fuel cost for a specific trip, first enter the total distance you plan to travel in kilometers. Next, input your vehicle's average fuel consumption rate (liters per 100km), which can usually be found on your dashboard or in the owner's manual. Finally, enter the current price of fuel per liter in your area. The calculator instantly computes the total liters of fuel required for the trip and multiplies it by the price to give you the precise total fuel cost. This helps you budget accurately for road trips, daily commutes, or delivery routes.

How it's calculated

Fuel Needed

distance_km * fuel_consumption_per_100km / 100

Total litres of fuel required for the trip

Fuel Cost

distance_km * fuel_consumption_per_100km / 100 * fuel_price_per_litre

Total fuel cost for the trip

Cost per km

distance_km * fuel_consumption_per_100km / 100 * fuel_price_per_litre / distance_km

Fuel cost per kilometre driven

Examples

100 km trip at 7 L/100km, 21,000 VND/L

  • Distance:100
  • Fuel Price:21,000
  • Fuel Consumption:7

Result

  • total_cost:384,000
  • fuel_required:16 liters

For a 200km trip in a car that consumes 8L/100km, you will need exactly 16 liters of fuel. At a price of 24,000₫ per liter, the total cost for the journey will be 384,000₫.

500 km highway trip at 8 L/100km, 21,000 VND/L

  • Distance:500
  • Fuel Price:21,000
  • Fuel Consumption:8

Result

  • total_cost:60,000
  • fuel_required:2.5 liters

A scooter traveling 100km with an efficiency of 2.5L/100km requires 2.5 liters. If fuel costs 24,000₫/liter, the total cost is a highly economical 60,000₫.

Industry Benchmarks

Metric Typical Range
Average compact cars consume 6-8 L/100km, while scooters use 2-3 L/100km. 7 L/100km

Data source: General Automobile Standards

Frequently Asked Questions

What is the average fuel consumption for cars in Vietnam?

Most popular sedans and SUVs in Vietnam consume between 6–10 litres per 100 km. City driving tends to be higher (8–10 L/100km) due to traffic congestion, while highway driving is more efficient (6–7 L/100km).

What is the current petrol price in Vietnam?

As of 2025, RON 95 petrol in Vietnam is approximately 21,000–23,000 VND per litre. Prices are regulated by the government and adjusted every 10 days. Check the latest price at your local petrol station or the Ministry of Industry and Trade website.

How can I reduce my fuel costs in Vietnam?

Key tips: maintain correct tyre pressure (saves up to 3%), avoid aggressive acceleration and braking, use air conditioning sparingly in city traffic, keep your engine well-maintained, and consider carpooling for regular commutes. Driving at a steady 80–90 km/h on highways is most fuel-efficient.

Does driving speed affect fuel consumption?

Yes, driving at high speeds or in heavy stop-and-go traffic increases fuel consumption. The L/100km figure on your dashboard is an average, so aggressive driving will result in a higher actual cost than estimated.

How can I improve my vehicle's fuel efficiency?

Maintain proper tire pressure, avoid carrying unnecessary weight, use cruise control on highways, and service your engine regularly. These small changes can improve fuel economy by up to 10%.
CalcVault Editorial Team

CalcVault Editorial Team

Verified Content Team

The CalcVault Editorial Team is a group of finance, health, and mathematics specialists dedicated to producing accurate, bilingual calculator content for Vietnamese and global small business owners. Every formula on CalcVault undergoes rigorous source verification against authoritative bodies including the IRS, CFPB, CDC, WHO, and NIST before publication. Our process includes independent peer review, structured fact-checking, and scheduled content audits to ensure every calculator remains up-to-date with the latest regulatory and scientific standards. We are committed to editorial independence from our advertising partners.

Areas of Expertise

Personal FinanceVietnam Tax & PayrollHealth Metrics & BMIApplied MathematicsBusiness LendingSMB Financial Planning
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