SoloRateCalc
Every tool

All calculators

Fourteen free calculators for freelancers and one-person businesses, grouped into four categories. Every tool runs in your browser, shows the formula, and produces an estimate from the numbers you enter.

Pricing & Rates

Freelance Hourly Rate CalculatorWork out what to charge per hour as a freelancer. Free calculator that factors in your income goal, expenses, time off and taxes — with the math shown.Open calculator →Day Rate CalculatorWork out your freelance day rate from your income goal, expenses, billable days and taxes. Free calculator that shows the hourly equivalent and the math.Open calculator →Markup CalculatorCalculate selling price and profit from your cost and markup %. Free calculator that also shows the equivalent profit margin, with the math shown.Open calculator →Profit Margin CalculatorCalculate your profit margin from revenue and costs in seconds. Free estimate tool that also shows the equivalent markup, with the math shown.Open calculator →Project Quote CalculatorTurn hours, rate and expenses into a fixed-price project quote with a built-in margin. Free calculator with the math shown.Open calculator →

Taxes

Self-Employment Tax CalculatorEstimate self-employment or payroll tax from your net profit and your own tax rate. Pure arithmetic — you control every number. Planning estimate only.Open calculator →Quarterly Estimated Tax CalculatorEstimate quarterly tax payments from your net profit and your own tax rates. Pure arithmetic — you control every number. Planning estimate only.Open calculator →Freelance Take-Home Pay CalculatorEstimate what you actually keep after self-employment tax and income tax. You enter every rate — pure arithmetic, always current. Planning estimate only.Open calculator →

Invoicing & Payments

Invoice CalculatorCalculate an invoice total fast — quantity, rate, discount and sales tax/VAT, with the full breakdown shown.Open calculator →Payment Processor Fee CalculatorCalculate the net amount you'll actually receive after payment processor fees. Enter the charge, fee rate and fixed fee — see the math.Open calculator →Late Payment Fee CalculatorCalculate the late fee owed on an overdue invoice from the amount, days late and your contract's interest rate, with the math shown.Open calculator →

Business Health

Break-Even CalculatorFind how many units and how much monthly revenue you need to cover fixed and variable costs. Free break-even calculator with the math shown.Open calculator →Net Profit CalculatorCalculate net profit and net margin after costs, expenses and taxes. Free calculator that shows the math behind your bottom line.Open calculator →Billable Hours CalculatorFind your real utilization rate and annual billable revenue from the hours you actually invoice. Free calculator with the math shown.Open calculator →

How these calculators work

Every calculator on this site applies a mathematical formula to the numbers you enter and returns a result. No official rates, government figures or external data are built into any of them. You bring the inputs that apply to your situation; the calculator does the arithmetic. This means the tools work for any country and any currency, and they never become outdated — there is nothing inside them that can go out of date.

Where a calculator shows a default value, that default illustrates the formula with a typical number. It is not an authoritative or current figure for any particular jurisdiction. Replace it with the value that applies to your situation before you rely on the output.

Every result includes a breakdown of the calculation and the formula used, so you can verify the arithmetic yourself. Estimates are for planning purposes only and do not constitute professional financial, tax, legal or accounting advice.

Pricing and rates

Five tools for working out what to charge. The hourly rate calculator builds your minimum rate from your income goal, costs, realistic billable hours and a tax set-aside. The day rate calculator translates that into a per-day figure. The project quote calculator turns your hourly rate and estimated hours into a fixed project price, with the option to add a margin on top. The markup calculator shows the selling price and profit from a cost and markup percentage. The profit margin calculator shows what margin a given selling price contains.

These five tools cover the complete pricing sequence: from setting a floor rate, to pricing individual engagements, to checking whether the resulting prices are profitable.

Taxes

Three tools for estimating self-employment tax obligations. All three require you to enter your own tax rates — no rate is assumed. The self-employment tax calculator applies your rate to your net profit. The quarterly tax calculator combines a self-employment tax estimate with an income tax estimate and divides by four. The take-home calculator subtracts both tax layers from net profit to show what remains. These are rough estimates for financial planning, not filing-ready figures.

Invoicing and payments

Three tools for the arithmetic of getting paid. The invoice calculator builds a correct total — discount before tax, not after. The payment processor fee calculator shows what a platform takes per transaction and what lands in your account. The late payment fee calculator works out the interest on an overdue invoice at the rate your contract specifies.

Business health

Three tools for reviewing the overall performance of the business. The break-even calculator finds the number of sales per month needed to cover fixed costs. The net profit calculator builds a simplified income statement from revenue, costs and taxes paid. The billable hours calculator measures how much of your working time generates income and what your revenue ceiling is at your current rate and utilisation level.

Using multiple calculators together

The calculators are designed to feed into each other. Set your hourly rate first, then use it as the input to the project quote calculator. Check the resulting price against the profit margin calculator. Use the take-home calculator to see what that revenue level actually produces after tax. Use the break-even calculator monthly to check whether you are above the floor. None of the tools requires another to work, but the outputs connect naturally when you use them in sequence.