FREE TOOLS · 4 CALCULATORS
Free tools for operators.
Standalone calculators — no signup, no email. The operator-economics math funded software makes you do by hand, built by the team behind Practice OS.
Accounting Firm Capacity & Realization Calculator
Free capacity calculator for accounting & bookkeeping firms: staff, billable hours, rate, and realization to see annual revenue capacity and the dollars lost to sub-100% realization.
Effective Hourly Rate Calculator for Fixed-Fee Work
Enter your monthly fixed fee and the hours you actually spend to see your true effective hourly rate, the fee you'd need to hit your target rate, and your gross margin per client. The fixed-fee number that quietly turns your best-looking client into your lowest-paid one.
Monthly Retainer Pricing Calculator for Bookkeeping Firms
Build a defensible monthly retainer from the ground up: enter estimated hours, fully-loaded labor cost, software cost per client, and your target margin to get the recommended price, your true cost to deliver, monthly profit, and the implied hourly rate. Price up from cost and margin, not down from a guess.
Catch-Up & Cleanup Bookkeeping Pricing Calculator
Quote a backlog cleanup with confidence: enter months behind, cleanup hours per month, your billing rate, a complexity multiplier, and any rush premium to get estimated total hours, a defensible project quote, the rush amount, and a suggested 50% deposit. Cleanup is the highest-leverage revenue a firm can price.
The numbers behind the decisions.
Most software built for small accounting + bookkeeping firms (1–15 staff) handles the workflow but leaves the economics to a spreadsheet — pricing, margin, break-even, commission, capacity, and ROI. These are the calculations that decide whether a job, a hire, a plan, or a price is actually worth it, and they usually live in a founder's head or a tab that never gets opened.
Every calculator here is free, instant, and runs entirely in your browser — no account, no email, nothing stored. Adjust the inputs and the outputs update live. Each one is a planning estimate meant to inform a decision, not replace your accountant. They're the same operator-side math Practice OS keeps running automatically once the guesswork is behind you.
Get the operations audit and a free sample skill.
A one-page diagnostic of the three biggest leaks in your operating week, plus one complete Practice OS skill you can run today with nothing but a Claude plan. Emailed once. No nurture sequence.
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