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My Diesel Calculator

Fuel & commuting cost planner

v2.0

Fuel purchase date

1. Today's Diesel Refill

Price per litre (£)

Amount paid (£)

Diesel Purchased—

Estimated Miles Added—

2. Your Next 7 Days

Daily driving distance (miles)

Dates begin on the refill date. Daily distances follow your usual weekday pattern and can be edited. Include return journeys.

Total planned mileage—

Miles left—

Vehicle Consumption (L/100 km)Adjust when your car's actual consumption becomes clearer. Miles left = estimated miles purchased − planned miles for the next 7 days.

3. Planned Range From This Purchase

— calendar days covered

Enter valid fuel and driving details

—7-day plan

Date	Plan	Cumulative	Purchase range left

“Days covered” counts consecutive calendar days from the refill date before planned mileage exceeds the purchase range. It does not estimate fuel already in your tank.

4. Your Fuel Budget

Average cost per driving day
Planned Miles (Next 7 Days)
Diesel required (Next 7 Days)
Estimated spend (Next 7 Days)
Estimated monthly spend (if repeated)

v2.0 · No data logging

This calculator estimates the range represented by a purchase, not your tank's remaining range. Fuel use and refill timing may vary.