FIDIC Variation Order Cost and Time Impact Calculator

Calculate FIDIC contract variation (Clause 13) cost and time impact: rate-based valuation, daywork rates, and Clause 12.3 adjustment where quantities increase >10%. Models Sub-Clause 20.1 notice requirements for claim preservation.

Statute of Limitations

Incident / Event Date
Claim Type

⚖ For informational purposes only. Not legal advice. Consult a licensed attorney for your specific situation.

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How to Use

Enter the values for the scenario you are assessing. Calculate FIDIC contract variation (Clause 13) cost and time impact: rate-based valuation, daywork rates, and Clause 12.3 adjustment where quantities increase >10%. Models Sub-Clause 20.1 notice requirements for claim preservation. Use the fidic variation order result to inform your calculation.

Frequently Asked Questions