Free Legal Practice Calculators
Four calculators that come up in every practice area
Billing, deadlines, billable time and fee estimates - the arithmetic that recurs whatever the matter is about, with the specialist sites listed below for anything that needs more depth.
Legal Billing Tool
Assemble an invoice from time, flat fees and expenses with discount, tax and retainer applied, whatever the practice area.
Result
Invoice total
$4,989
Amount due
$1,989
- Time fees
- $4,620
- Flat fee
- $0
- Discount
- $231
- Net fees
- $4,389
- Expenses
- $600
- Tax
- $0
- Retainer applied
- $3,000
- Credit remaining
- $0
This tool performs arithmetic on the values you enter. It does not provide legal advice and does not create an attorney-client relationship.
Showing the discount as a separate line makes the concession visible to the client rather than hiding it in a lower rate.
Tax treatment of legal fees and of disbursements differs by jurisdiction. Confirm which lines are taxable where you practise.
Read the full guide, worked examples and FAQ for this calculator →
Popular tools
The calculators visitors to LegalToolsHub open most often.
- Billing & Fees
Legal Billing Tool
Assemble an invoice from time, flat fees and expenses with discount, tax and retainer applied, whatever the practice area.
Open calculator → - Deadlines & Dates
Legal Deadline Tool
Count a deadline forward or backward under the convention you specify, with weekend and closure handling.
Open calculator → - Time & Utilization
Billable Time Tool
Convert a daily billing habit into annual hours and the cash it produces after realization and collection.
Open calculator → - Billing & Fees
Legal Fee Tool
Build a fee estimate by timekeeper level with expenses and a stated allowance, and see the blended rate it produces.
Open calculator →
Practice areas differ enormously in substance and very little in administration. Every matter has a fee that has to be estimated, time that has to be recorded and billed, deadlines that have to be counted, and an invoice that has to be assembled.
These four tools cover that shared ground. They are deliberately general - where a question needs the depth of a specialist tool, the sister sites listed below go considerably further.
Browse by category
Billing & Fees
Fee estimates, invoices, retainers and flat-fee pricing.
Go deeper on a specific line
Sister sites in the same network, each covering one line of business in more detail.
LegalCalculatorTools
Free Legal Fee & Billing Calculators
Free calculators for legal fees, billable hours, retainers and flat-fee pricing. Built for people who need the arithmetic behind a fee estimate, not legal advice.
LegalDeadlineTools
Free Deadline & Date Calculators
Free date tools for legal work: count deadlines forward or backward, measure business days, count down to a filing, and build a schedule backwards from a hearing date.
LegalBillingTools
Free Legal Billing Calculators
Free calculators for legal billing: build an invoice with discounts, tax and retainer applied, split a contingency recovery, follow hourly billing through to cash, and size a retainer properly.
LegalFirmTools
Free Law Firm Economics Calculators
Free calculators for law firm economics: profit and break-even hours, firm-wide utilization and realization, the rate a revenue target requires, and annual billing capacity.
LegalConflictTools
Free Conflicts & Risk Tools
Free tools for conflicts and file risk: a browser-only name matcher that catches spelling and suffix variants, procedure checklists for searching and recording, and a file retention calculator.
Why use LegalToolsHub
The recurring four
Fee estimates, billable time, deadline counting and invoicing come up in every practice area and every matter type.
Conventions made explicit
Billing increments, rounding rules and day-count conventions are options rather than hidden assumptions, because they differ between firms and jurisdictions.
Nothing invented
No jurisdiction is assumed, no court calendar is built in, and no rule is interpreted. Every figure comes from what you enter.
Free, private, no account
No sign-up, no email, no data collection. Everything runs inside your browser.
How it works
- Pick the tool matching the administrative question in front of you.
- Enter your own rates, hours and conventions rather than accepting the defaults.
- Read the result along with the assumptions listed beneath it.
- Follow the specialist site if the question needs more depth.
Guides
Plain explanations of the concepts behind the calculators.
How Billable Hours Work
Billable hours are the unit most legal work is priced in. Understanding increments, utilisation and realisation explains why a full working day rarely produces a full day of billed time.
How Legal Deadlines Are Calculated
Deadline counting looks simple and is governed by rules that differ by jurisdiction, court and rule type. The arithmetic is easy; identifying which rule applies is the hard part.
Legal Fee Structures Explained
Each fee structure allocates risk between the firm and the client differently. Understanding which risk you are taking on is more useful than comparing headline rates.
Frequently asked questions
Is this legal advice?
No. This website provides general informational and productivity tools and does not provide legal advice or create an attorney-client relationship.
Can I rely on the deadline tool for a filing?
No. It counts days exactly as instructed. It does not know your jurisdiction, does not interpret court rules, and has no court calendar. Verify every date against the governing rule.
Which tool should I start with?
The fee tool if you are pricing a matter, the billable time tool if you are setting a target, and the billing tool if you are assembling an invoice.
Do these work outside the legal profession?
The billing, time and fee tools apply to any professional service billing time and expenses. The deadline conventions are more specific to legal practice.
How is this site funded?
By display advertising. There are no subscriptions, no affiliate links and no lead selling, which is why nothing here asks for your contact details.