Work out fuel adjustment surcharge instantly with clear inputs, formula shown and shareable results.
A fuel surcharge applies the percentage movement in fuel price to only the fuel share of freight cost — typically 25-35% for road haulage. Applying the full fuel movement to the whole rate, as some tariffs do, substantially over-recovers.
Fuel movement
Movement % = (Current fuel price / Base fuel price - 1) x 100
Surcharge
Surcharge = Base freight rate x Movement x Fuel share of cost %
Indicative estimate only. Fees, entitlements, limits and formulas vary by jurisdiction, statute, policy wording and the facts of the case. This is not legal, tax, insurance or financial advice — confirm with a qualified professional or the relevant authority.
25-30% for long-haul road, 30-40% for short-haul with heavy stop-start driving, and higher still for air freight.
Yes. A symmetric mechanism reduces the rate when fuel falls, which is what makes it a genuine pass-through rather than a price increase.