Variation/Change Order Calculator
Calculate variation order pricing with material, labor, overhead, and profit breakdowns. Generate professional VO cost analysis for contract claims.
Positive = cost increase, Negative = cost decrease
1.0 = normal, >1.0 = reduced productivity (more labor cost)
Original Value
$5,000
Variation
+$2,986
Change
+59.7%
Variation Amount
+$2,986
Addition to Contract
Notes:
- Variation calculated per FIDIC principles
- Overhead applied to direct cost only
- Profit applied to direct cost + overhead
- Productivity impact affects labor portion of rate
FINANCIAL DISCLAIMER
This calculator provides INDICATIVE FIGURES for reference purposes only.
Important:
1. Results are based on standard formulas and user-provided inputs. Actual contractual amounts may differ based on specific contract terms and conditions.
About This Calculator
This Variation/Change Order Calculator helps contractors and consultants price variations accurately per FIDIC contract requirements. Build up rates for additional works with detailed breakdowns of materials, labor, plant, overhead, and profit. Essential for managing scope changes in UAE and Gulf construction projects operating under FIDIC Red, Yellow, or Silver Book conditions.
When to Use This Calculator
- Pricing additional works instructed by the Engineer
- Building up rates for new BOQ items
- Preparing daywork claims for emergency works
- Evaluating subcontractor variation quotations
- Negotiating fair rates for scope changes
How to Use This Calculator
Define scope of variation
Describe the additional or changed work with reference to contract
Enter material costs
Input quantities and unit rates for materials with wastage factors
Add labor costs
Enter man-hours by trade with applicable wage rates
Include plant and equipment
Add equipment hire rates and duration
Apply overhead and profit
Add general overhead (typically 10-15%) and profit margin (5-10%)
Typical Scenarios in UAE & Gulf Projects
Pricing a variation to upgrade external cladding from composite panels to unitized curtain wall. Calculator builds rate from aluminum profiles (850 AED/m²), glass (420 AED/m²), seals/fixings (80 AED/m²), installation labor (180 AED/m²), plus 12% overhead and 8% profit, yielding 1,714 AED/m² vs original 950 AED/m².
Rock excavation variation for 2,400m³ discovered during foundation works. Daywork records show 3 rock breakers for 15 days plus hauling. Calculator determines rate of 245 AED/m³ inclusive of plant, operator, and disposal, totaling 588,000 AED variation claim.
Frequently Asked Questions
Take Your Calculations Further
This calculator reflects the logic built into Arkan's construction management platform.
Last Updated: January 2026
Standards Reference: FIDIC Conditions of Contract Clause 13, UAE Civil Code