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Free Project Margin Calculator for Agencies

A project margin calculator tells you how profitable each client project really is - not just revenue, but what you actually keep after labor, direct costs, and overhead. Enter your project revenue and costs to see your margin instantly, compare to agency benchmarks, and run "what if" scenarios to find where to improve.

Most agencies don't know their project margin until the invoice is sent - by then it's too late to fix scope creep or repricing opportunities. Use this calculator before quoting to validate your pricing, and again post-project to track actual vs. expected margin. All inputs save automatically to your browser. No account required.

Agency benchmarks

Why project margin tracking matters

Revenue is vanity. Project margin is sanity. Agencies that track margin per project grow faster, avoid unprofitable clients, and make better pricing decisions.

How to use the project margin calculator

From inputs to insight in under a minute. No spreadsheet, no formula to memorise.

1. 1

   Enter your project revenue

   Type the total amount billed or expected to be billed for this project. For fixed-fee projects, this is your quoted price. For time-and-materials, it's the invoiced total.

2. 2

   Add your labor cost (hours × loaded hourly rate)

   Enter total hours spent on the project and your loaded hourly cost - the true cost per hour including salary, payroll taxes, and benefits. If you have multiple team members, use a weighted average loaded rate across everyone who worked on the project.

3. 3

   Include direct costs

   Add any costs incurred specifically for this project: contractor payments, stock photos, hosting, specific software subscriptions, printing, travel, or any other out-of-pocket expense tied to delivery. Do not include general overhead here - that goes in the next field.

4. 4

   Set your overhead allocation percentage

   Overhead allocation is your agency's fixed costs spread across projects as a percentage of revenue. Most agencies use 15–25%. If you're unsure, start with 20% and refine as you calculate your actual overhead ratio (total annual overhead ÷ total annual revenue).

5. 5

   Read your margin and run what-if scenarios

   Your project margin appears instantly. Use the benchmark bar to see where you stand relative to agency averages. Use the what-if slider to see how different pricing would have changed your margin - then apply those insights to your next quote. Download the PDF report to share with your team or track project performance over time.

Frequently asked questions

What is a project margin calculator?

A project margin calculator helps agencies determine how profitable each individual client project is - not just whether it generated revenue, but what percentage you actually keep after accounting for all costs. You enter project revenue, labor hours, your loaded hourly rate, direct costs (contractors, software, materials), and your overhead allocation percentage. The calculator returns your gross profit and margin percentage so you can see which projects are healthy and which are eroding your agency's bottom line.

What is a good project margin for agencies?

A healthy project margin for digital and creative agencies is typically 20–35%. Agencies with consistent margins above 35% are considered excellent performers. Margins of 10–20% are average - workable but leaving little room for error or reinvestment. Margins below 10% are a warning sign: you're busy but barely profiting. If you're consistently below 10%, the project margin calculator can help identify whether the issue is under-pricing, over-servicing, or overhead misallocation.

What's the difference between gross margin and net margin?

Gross margin is the profit left after deducting the direct costs of delivering the project - labor, direct expenses, and allocated overhead. Net margin goes further and also subtracts all company-wide costs: sales, marketing, admin, taxes, and any other G&A. This project margin calculator computes gross project margin, which is the right metric for evaluating individual project profitability. Net margin is a company-level measure and requires full P&L visibility.

What should I include in 'overhead allocation'?

Overhead allocation represents the share of fixed company costs attributable to this project. This includes: office rent, general software subscriptions (project management, design tools, email), non-billable salaries (operations, finance, HR), insurance, and equipment depreciation. Most agencies allocate 15–25% of revenue to overhead. If your agency runs lean (fully remote, small ops team), 10–15% may be appropriate. Higher overhead agencies - with offices, large management teams, or heavy tooling - may need 25–30%.

How do I use this project margin calculator?

Enter your project revenue, total labor hours, your loaded hourly rate (salary + benefits ÷ billable hours), direct costs (anything bought specifically for this project), and your overhead allocation percentage. The calculator shows your margin instantly and breaks down where your revenue goes. Use the what-if slider to see how a price increase would affect your margin - this is especially useful when scoping similar future projects.

How do I price a project to achieve a 30% margin?

Work backwards: if your total costs (labor + direct + overhead) are $7,000, and you want 30% margin, your required revenue is $7,000 ÷ (1 − 0.30) = $10,000. Many agencies price by adding a markup to costs (e.g. 40% markup on $7,000 = $9,800), but note that markup percentage and margin percentage are different numbers - a 40% markup on costs equals a 28.6% margin on revenue. Use the project margin calculator to verify your margin before finalising quotes.

What is 'loaded hourly rate' and how do I calculate it?

Loaded hourly rate is the true cost of an employee's time, including salary, payroll taxes, benefits, and sometimes a share of overhead. A simple calculation: take an employee's annual fully-loaded cost (salary + 20–30% for taxes and benefits) and divide by their annual billable hours. For example, a $80,000 salary + $20,000 in benefits and taxes = $100,000 ÷ 1,500 billable hours = $66.67 loaded hourly rate. Use this number as your rate input rather than the raw hourly wage.

Why is my project margin negative?

A negative project margin means you spent more delivering the project than you earned from it. Common causes: scope creep (more hours than quoted), under-pricing (rate too low to cover costs), over-servicing (delivering more than contracted), or high overhead allocation on a small project. Use the what-if slider to see what price would have been needed for a positive margin. Going forward, use the project margin calculator before quoting to validate that your price covers all costs and delivers a healthy margin.

How does scope creep affect project margin?

Scope creep is the most common margin killer in agency work. Adding 20 unplanned hours to a project that expected 60 hours at $75/hr cost = $1,500 of unplanned cost absorbed directly into your margin. If the project was $6,000 with $4,500 in planned costs (25% margin), those extra hours drop your margin to 8.3%. The Agency Management Institute estimates scope creep costs an average 10-person agency over $100,000 per year. The project margin calculator lets you input actual hours post-project to measure the real impact.

Is this project margin calculator free to use?

Yes, completely free and no account required. Enter your project details, see your margin instantly, run what-if scenarios, and download a PDF report - all in your browser. Your inputs are saved automatically to your browser's local storage so they persist between sessions. Your data is never sent to Sagely's servers.