Estimate a fuel discount
Enter a docket, member rate, app offer or custom discount to estimate the saving per fill, month and year.
Example: Coles Supermarkets Fuel Docket
ExampleSaving per fill
$2.40
$9.60 a month · $115.20 a year
- U91 national average
- 224.5 c/L
- Discount
- 4 c/L
- Price you pay
- 220.5 c/L
- Saving on 60 L
- $2.40
Example: Coles Supermarkets Fuel Docket. Saving per fill. $2.40. $9.60 a month · $115.20 a year
Saving per fill · $9.60 a month · $115.20 a year$2.40
DetailsApply a fuel discount to the price you can actually use
Start with the base pump price
Compare the station’s undiscounted price first. A discount off a dearer base price can still cost more than a cheaper nearby station.
Choose the correct discount type
Cents per litre, percentage discounts and fixed-dollar offers produce different savings and should not be entered interchangeably.
Check caps and eligibility
Include maximum litres, minimum spend, membership, app activation and fuel-grade exclusions shown in the offer terms.
Use a realistic fill pattern
Monthly and annual estimates only make sense when fill size and frequency match the way you normally buy fuel.
Fuel map
Check a station price before you go
Open the fuel map for reported prices, update times and directions near you or along your route.
Get the free FuelRadar app
Free on iPhone and Android: price alerts, saved stations, the forecast.
Discount calculator questions
How is the discount saving calculated?
The per-litre discount is taken off the pump price and multiplied by your fill size for the saving per fill, then by your fills per month and by 12 for the year.
Can I stack fuel discounts?
Often yes. Combine a loyalty discount with a low base price from the fuel map, and check each offer’s terms for caps and exclusions.
When should I fill up?
Check your city’s price cycle before filling where one is published. Prices can rise or fall quickly, and cycles vary by city.