A TOOL FOR CONTRACTORS
Project prolongation cost calculator
for initial claim scoping.
Build a transparent additional-cost estimate, then review the period, evidence and contractual basis before preparing your claim.
Questions about claim calculations
Is the result an amount I am entitled to?
No. It aggregates your inputs. Entitlement, compensable period, causation and notice compliance require review against the contract, facts and applicable law.
Does an extension of time automatically mean compensation?
Not necessarily. Time analysis, cost assessment and contractual entitlement need separate, coordinated review.
What does the calculator exclude?
It does not automatically assess disruption, acceleration, head-office overhead, profit, taxes or concurrent delay. Delay damages are not treated as a contractor compensation rate.
Does Blue receive my entries?
No. Calculation is local and values are not saved. The claim-preparation link opens a separate enquiry form where you choose what to send.
Professional reading on delay, compensation and records: SCL Delay and Disruption Protocol. This is Blue’s arithmetic tool, not an SCL-approved calculator.