How do I use the Change Order Calculator?

Enter your values in the fields provided and click Calculate. The change order calculator will instantly compute results using standard construction formulas and display a detailed breakdown.

What formula does the Change Order Calculator use?

Change order cost equals direct cost times one plus markup percentage. The formula used is: CO = DirectCost × (1 + Markup%). This formula follows industry-standard construction and engineering practices.

Is the Change Order Calculator free to use?

Yes, all Calzyra construction calculators are completely free to use. No registration, subscription, or payment is required. All calculations are performed locally in your browser.

Are the results accurate?

Our calculators use industry-standard formulas and are regularly verified for accuracy. Results are estimates and should be verified by a qualified professional for actual construction projects.

Can I use the Change Order Calculator for professional estimating?

The change order calculator provides accurate estimates based on the inputs you provide. It is suitable for preliminary planning and estimation. For final project specifications, always consult with licensed professionals and follow local building codes.

Construction CalculatorCost Estimation

Change Order Calculator

Calculate the cost impact of a change order including direct costs, markup, and overhead.

Updated 2025-01-153 min readCalzyra Construction Team

Calculator

Enter your values below

Additional Materials ($)

Additional Labor ($)

Markup % (%)

Formula & Methodology

How this calculator works

CO = DirectCost × (1 + Markup%)

Change order cost equals direct cost times one plus markup percentage.

Frequently Asked Questions

Common questions about this calculator

Change Order Calculator

Calculator

Formula & Methodology

About Change Order Calculator

Frequently Asked Questions

Change Order Calculator

Calculator

Formula & Methodology

About Change Order Calculator

Frequently Asked Questions