Fuel Surcharge Calculator

Base diesel price in the contract, diesel this week, your L/100km. Fair surcharge per km and for the load, against the broker's.

Measure in

Base diesel price in the contract

$/L

The price the linehaul rate was built on. It is in the rate confirmation.

Diesel this week

$/L

Use the national average, or your card statement.

Your truck burns

L/100km

Loaded, 35 to 42 for a Class 8. Check the last fill against the odometer.

Loaded km on this load

Surcharge the broker is offering

$/km

0 if none. Quoted per mile? Switch to miles above.

Loaded km per month

How this is calculated

Litres per km = L/100km ÷ 100. Surcharge per km = (today − base) × litres per km, never below zero.

Surcharge for the load = surcharge per km × loaded km. Compare it with what the broker offers; the gap is fuel you pay for out of the rate.

Yearly leak = the shortfall per km × loaded km per month × 12. Not halved: you buy diesel every month.

Prices are before GST/HST. Add tax on top of the price shown, never inside your margin. Estimates, not advice.

Verdict

The broker is pocketing your fuel money

$0.129 per km covers the $0.34/L rise

Fair surcharge for this load$83

Conservative yearly leak$8,266

What accepting the offered surcharge instead of the fair one costs over a year of loaded km.

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The printable worksheets, templates, and benchmarks behind this calculator. $49, one-time.

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Your truck's costs once, then a verdict on every load you log and the month's profit. Saved on this device, free.