Contractor Estimate & Bid Calculator

Build consistent bids before the work begins.

The Contractor Estimate & Bid Calculator is a reusable Excel estimating system designed to help contractors price labor, materials, equipment, subcontractors, permits, fees, overhead, and other project costs in one organized workflow.

Instead of relying on rough totals or disconnected notes, this workbook shows the full cost of the job, the proposed selling price, the expected gross profit, and whether the bid reaches your target margin.

What this system helps you do

• Build estimates using reusable cost codes and unit costs
• Price labor, materials, equipment, subcontractors, permits, and other costs separately
• Add waste factors, cost adjustments, markup, contingency, tax, and deposit requirements
• Calculate adjusted project cost, selling price, gross profit, gross margin, and price gap
• Compare the current quote with the price required to reach your target margin
• Create a cleaner customer-facing quote while keeping internal pricing details separate

Included worksheets

• Start Here — workbook instructions and color guide
• Company Setup — company, client, project, tax, deposit, and margin settings
• Cost Library — reusable labor, material, equipment, subcontractor, fee, and other cost items
• Estimate Builder — quantity-based estimating with automatic cost and selling-price calculations
• Client Quote — customer-facing pricing summary, scope, and exclusions area
• Bid Summary — category totals, margin review, target-price check, and bid-readiness status
• Lists — editable categories, units, and estimate statuses

Built for

Small contractors, specialty trades, estimators, project managers, foremen, owner-operators, and construction businesses that need a practical estimating process without another monthly software subscription.

What you receive

• Downloadable Microsoft Excel workbook (.xlsx)
• Quick Start Guide
• License and use terms
• Sample project data for learning the workflow

Compatibility

• Designed for Microsoft Excel 2021 and Microsoft 365 desktop
• No macros
• Yellow cells identify user inputs
• Gray cells contain formulas and calculated results

Important

This workbook is an operational planning tool. Review all quantities, rates, taxes, scope language, exclusions, customer terms, and legal requirements before issuing a quote. It is not accounting, tax, payroll, legal, engineering, safety, bonding, or insurance advice.

Single Business License

For use within one business by that business and its employees. This license does not permit resale, public sharing, or distribution to separate businesses, customers, consulting clients, or outside organizations.

This workbook is also included in the Contractor Operations Pro Bundle. Explore all Contractor Operations Systems.

Put the workflow into practice

Learn how the accepted estimate becomes the baseline for the job. Read how to track contractor job costs from estimate to final bill.