Free calculator library

Tools for independent work

Ten focused calculators for rates, pricing, income, cash flow, and the costs behind your business.

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10 tools

Find a sustainable hourly rate from your income goal, costs, taxes, and realistic billable time.

Convert an annual salary into comparable hourly, daily, weekly, and monthly earnings.

Translate an hourly rate into annual, monthly, and weekly gross income.

Compare contract revenue with the full value of salary and employer-provided benefits.

Build a fixed project price from time, costs, contingency, and target profit.

Draft a clean invoice total with tax, discount, and payment terms.

Understand the monthly and annual cost of working from home.

See the true annual cost of your software stack and unused seats.

Estimate realistic annual billable capacity after leave, admin, and sales work.

Estimate a transparent late fee based on the overdue amount, rate, and delay.