Free tools for freelancers

The numbers behind your freelance business

Simple, free calculators that help you price your work, manage taxes, and understand what you actually earn. No signup required.

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17coming soon
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Pricing & Rates

Freelance Hourly Rate Calculator
Find the minimum rate you need to charge to cover taxes, benefits, and realistic billable hours.
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Project Profit Margin Calculator
See what you actually earn on a project after expenses and time.
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Billable Hours to Income Calculator
If you bill X hours at Y rate, what is your actual annual take-home?
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Salary to Freelance Rate Converter
Convert a salaried job offer to its freelance equivalent โ€” including taxes and benefits.
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Consulting Day Rate Calculator
Calculate your day rate from your hourly rate or annual income target.
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Tax Estimators

Self-Employment Tax Estimator
Estimate your quarterly SE tax payments so you are never caught short.
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Quarterly Tax Payment Calculator
Calculate your estimated quarterly tax payments for federal and state.
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1099 Tax Calculator
Estimate your total tax bill from 1099 income including SE tax and income tax.
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Mileage Deduction Calculator
Calculate your IRS standard mileage deduction for business driving.
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Home Office Deduction Calculator
Estimate your home office deduction using the simplified or regular method.
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Payment & Platform Fees

Stripe Fee Calculator
See exactly what Stripe takes โ€” and how much to charge to net your target amount.
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PayPal Fee Calculator
Calculate PayPal fees for goods, services, and invoice payments.
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Square Fee Calculator
Estimate Square processing fees across card-present and online transactions.
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Etsy Fee Calculator
Calculate Etsy listing, transaction, and payment processing fees per sale.
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Shopify Fee Calculator
Estimate Shopify transaction and payment processing fees by plan.
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Invoicing & Cash Flow

Invoice Late Fee Calculator
Calculate interest owed on overdue invoices using your late fee percentage.
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Net 30 / 60 / 90 Due Date Calculator
Calculate invoice due dates for Net 30, 60, and 90 payment terms.
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Freelance Cash Flow Runway
How many months can you cover expenses if new work stops coming in?
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Effective Hourly Rate Calculator
What are you actually earning per hour once all unpaid time is counted?
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Instant results
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No signup required
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Works on mobile
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Always free
Why SoloNumbers exists

A lot of talented people know their work inside and out, but nobody ever taught them how to price that work as a business. That is where freelancers, consultants, and independent professionals can get hurt.

They take an old salary, divide it by a standard work year, pick a number that feels fair, and hope it works. Hope is nice. It is not a pricing strategy.

SoloNumbers was built to help people think through the real math behind freelance and consulting rates โ€” including taxes, unpaid time, benefits, business expenses, and realistic billable hours. Because great work still needs good math.

Read the full story โ†’

All calculators provide estimates for planning purposes only. Consult a qualified tax or financial professional for advice specific to your situation.