Track billable hours by task — auto subtotals, grand total, blended rate, CSV export.
- Runs locally
- Category Calculator
- Best for Getting a realistic range before a purchase, plan, workout, or schedule decision.
Enter hours and rate above to see the bill total.
All data stays in your browser. Draft is auto-saved to localStorage and never sent to any server.
What this tool does
Free online legal billable hours calculator. Add unlimited time-entry rows, each with a task description, decimal hours (e.g. 0.25 = 15 minutes), and an individual hourly rate. The tool instantly shows the per-task subtotal, a running grand total, and the effective blended hourly rate across all work. Add or remove rows on the fly, export the full bill summary to CSV for your accounting software or client invoice, and rely on automatic localStorage draft-saving so a browser refresh never loses your in-progress timesheet. Every calculation stays 100% in your browser — no time entry, client name, or billing rate ever leaves your device. Ideal for solo practitioners, law firms tracking multi-timekeeper matters, legal consultants, and anyone who bills by the hour.
Tool details
- Input
- Text + Numbers
- The page exposes text boxes, numeric controls, file pickers, or structured inputs depending on the tool.
- Output
- Live result + Download
- The result area focuses on usable output, with copy, download, or preview actions when supported.
- Privacy
- Browser-side processing
- The main tool logic does not call an external API, so inputs normally stay in the current tab.
- Save / share
- Shareable URL state
- Key settings are encoded in the URL so another person can reopen the same setup.
- Performance budget
- Initial JS <= 14 KB
- No WASM budget is declared, keeping the tool quick to open on mobile.
- Best fit
- Calculator · Legal
- Category and role tags drive related tools, internal links, and quick fit checks.
How to use
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1. Input
Paste or drop your content into the tool panel.
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2. Process
Click the button. All processing is local in your browser.
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3. Copy / Download
Copy the result or download to disk in one click.
How Legal Billable Hours Calculator fits into your work
Use it for fast estimates, comparisons, and planning numbers before you make the final call.
Calculation jobs
- Getting a realistic range before a purchase, plan, workout, or schedule decision.
- Comparing scenarios by changing one input at a time.
- Turning rough assumptions into a number you can discuss.
Calculation checks
- Double-check units, dates, rates, and rounding assumptions.
- Treat health, finance, tax, and legal outputs as planning aids, not professional advice.
- Save the inputs that produced an important result so you can reproduce it later.
Good next steps
These links move the current task into a more complete workflow.
- 1 China Overtime Pay Calculator China overtime pay calculator — workday 1.5×, weekend 2×, statutory holiday 3× per Labor Law Art. 44, with 31 provincial minimum-wage tables. Open
- 2 Salary to Hourly Converter Hourly ⇄ daily ⇄ weekly ⇄ monthly ⇄ annual pay — set your hours/week and weeks/year, see all five at once — browser-only Open
- 3 ROI Calculator ROI %, net gain, annualized ROI (CAGR) and payback period — one screen, share a link — 100% in your browser Open
Real-world use cases
Assembling a client invoice at end of week
A solo practitioner reviews the week's notes on Friday afternoon. She opens the calculator, adds one row per matter worked that week — client strategy call 0.5 hr at $400, legal research 2 hr at $400, brief drafting 3.5 hr at $400 — and the grand total of $2,400 appears instantly. She clicks Export CSV and pastes the rows into her billing software, skipping the manual arithmetic entirely.
Multi-timekeeper matter summary for a litigation file
A firm partner bills his own time at $750/hr and an associate's at $350/hr on the same dispute. He adds four rows: partner strategy call 1.0 hr, associate document review 4.0 hr, partner depo prep 0.5 hr, associate research memo 2.0 hr. The tool shows grand total $3,125 and blended rate $416.67/hr — figures he quotes verbatim to the client in the monthly budget update.
Common pitfalls
Entering minutes instead of decimal hours. Thirty minutes is 0.5, not 30 — the tool uses decimal hours matching standard legal billing convention.
Leaving the rate field blank. A blank rate is treated as $0/hr so the subtotal shows zero even if hours are filled; fill in the rate before exporting.
Expecting the blended rate to equal the grand total divided by the number of rows. The blended rate divides by total hours, not row count — it is a weighted average, not an arithmetic mean of rates.
Privacy
Every time entry you type — task descriptions, hours, and rates — stays in your browser via localStorage. Nothing is sent to any server and the data is never written to the page URL. Clearing browser storage or opening incognito removes the draft.
FAQ
Tool combos
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