About this toolkit

About Scope & Profit Toolkit

Scope & Profit Toolkit is an independent collection of free tools for solo freelance web developers and designers.

The project helps you estimate a quote, understand extra scope and assess the economics of completed work. You can use each calculator independently or choose to carry numeric assumptions to a related tool. No account is needed.

How the numbers are calculated

Each calculator uses a deterministic formula implemented separately from its interface. Formulas, input definitions, limitations and a matching numerical example appear on every tool page. Automated tests check the documented examples and boundary conditions, including zero values, losses and undefined ratios.

We retain intermediate precision and round displayed money, hours and percentages to two decimal places. Inputs use USD as a display unit; there is no currency conversion or live pricing data. Small floating-point rounding differences can occur in extremely large computations. These are planning tools, not accounting software.

Different questions need different measures

Revenue is the client fee. Cash after expenses deducts external costs. Economic profit additionally deducts the internal value you assign to your time. Effective cash earnings per hour do not deduct that personal labor valuation. The toolkit keeps these concepts separate.

What we do not promise

A calculated quote does not establish a market price, ensure client acceptance or guarantee profitability. The guides use illustrative numbers rather than claims about average freelancer earnings. All results depend on your assumptions and exclude costs you have not entered.

Privacy by design

Calculations run in your browser. No client-name fields, user accounts, analytics scripts or advertising scripts are included. Read the Privacy Policy before choosing to transfer numeric assumptions through a URL.

A public support channel is not currently offered. There is no promised response service. Tool use does not require contacting anyone.