Contingency Calculator

Appropriate contingency percentage from project risk assessment.

Estimated Project Cost ($)

Project Phase

Complexity Rating (1–5)

Site Risk (1–5)

Scope Clarity (1–5)

Tab to move between fields

Recommended Contingency (%)

12.06%

Total Contingency ($)

$120,625

Design Contingency (%)4.83%

Construction Contingency (%)7.24%

Design Contingency ($)$48,250

Construction Contingency ($)$72,375

Total with Contingency ($)$1,120,625

How to Use This Calculator

Enter the current estimated project cost before contingency is added.
Select the project phase: 0 = concept/schematic, 1 = design development, 2 = construction documents, 3 = bid/negotiation.
Rate project complexity on a 1–5 scale (1 = simple/standard, 5 = highly complex or unique).
Rate site risk on a 1–5 scale (1 = well-known site, 5 = unknown conditions or difficult terrain).
Rate scope clarity on a 1–5 scale (1 = vague/evolving, 5 = fully defined and documented).
Read the recommended contingency percentage, split between design and construction reserves, and the total project cost with contingency included.

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