The calculator registry
Each tool runs entirely in your browser and shows its work. If a formula looks wrong to you, read the methodology and tell me.
- Working Hourly rate calculator From target income to a defensible quote.
- Working Quarterly tax estimator Four payments, no April surprise.
- Working 1099 take-home calculator From contract rate to what lands in your account.
- Working S-corp vs sole-prop comparison When the paperwork starts paying for itself.
- Working Freelancer runway calculator How many slow months your savings survive.
- Working Self-employment tax calculator The 15.3% nobody warned you about, itemized.
- Working W-2 vs 1099 rate calculator What a salary is really worth as a contract rate.
- Working Project price calculator From an hourly estimate to a fixed quote with margins.
- Working Invoice late fee calculator Interest on overdue invoices, computed defensibly.
- Working Solo 401(k) / SEP-IRA calculator How much you can shelter this year, both plans compared.
- Working Rate converter Hourly to day, week, month, year, on real billable time.
- Working Invoice generator Professional invoices in the browser, print to PDF.
- Working Billable hours calculator How many billable hours your year really holds.
- Working Day rate calculator Price a booked day, premium included.
- Working Tax set-aside calculator The percent of every invoice to move, from real math.
- Working Rate increase calculator What a raise earns and how much churn it survives.
- Working Deposit & milestones calculator Split a project into deposit and payments.
- Working Rush fee calculator Deadlines cost extra. Price the premium.
- Working Kill fee calculator Bill a cancelled project fairly, and get paid.
- Working Scope creep calculator What free extras really cost you per year.
- Working Payment processor fees Stripe vs PayPal vs Square on your invoices.
- Working Platform fee calculator What Upwork and Fiverr keep from your earnings.
- Working Home office deduction Simplified vs actual method, side by side.
- Working Mileage deduction calculator Business miles into 2025 deduction dollars.