Calculators
Expert Witness Fee Calculator
Estimate expert witness fees for case review, report writing, deposition, trial testimony, travel and expenses, less the retainer.
- Runs in your browser
- Nothing uploaded
The tool
Enter your numbers below. Results update as you type, and nothing leaves your browser.
Everything you enter stays on your own machine. Nothing is sent to us or to anyone else, which you can confirm in your browser network tab.
What people use it for
- Budgeting expert costs in litigation
- Experts quoting engagements
- Comparing expert proposals
- Client cost estimates
About this tool
What the Expert Witness Fee Calculator does
Expert witnesses usually charge hourly, often at a higher rate for deposition and trial testimony than for review, and bill travel time at a reduced rate. Adding each activity gives the expected cost, and subtracting the retainer shows what remains to be paid.
Formula
- Total = review hours × rate + (deposition + trial hours) × testimony rate + travel hours × travel rate + expenses
- Balance = total − retainer
Worked example
Using the starting values in the calculator above:
| Input | Value |
|---|---|
| Review and report hours | 20 |
| Review rate | $400 |
| Deposition hours | 6 |
| Trial testimony hours | 8 |
| Testimony rate | $500 |
| Travel hours | 10 |
| Travel rate | $200 |
| Expenses | $1,500 |
| Retainer paid | $5,000 |
| Result | Value |
|---|---|
| Total expert cost | $18,500 |
| Balance after retainer | $13,500 |
| Testimony fees | $7,000 |
How to read the result
In many US courts, the party taking an expert’s deposition pays for the expert’s deposition time; check local rules.
Agree minimum charges and cancellation terms for testimony days in the engagement letter.
General information only, not legal advice. Laws and court practice vary by jurisdiction; consult a qualified lawyer.
Related calculators
- Workers’ Comp Settlement Calculator: Estimate a workers’ compensation permanent partial disability award from wage, compensation rate, impairment rating and weeks, plus future medical.
- Non-compete Reasonableness Checklist: Score a non-compete clause against the factors courts commonly consider: duration, geography, scope, consideration and legitimate interest.
- Alimony Calculator: Estimate spousal support with the American Academy of Matrimonial Lawyers guideline formula, including the 40% cap and suggested duration.
- Divorce Asset Division Calculator: Total the marital estate, compare each spouse’s allocation with a target split and calculate the equalisation payment.
Browse every calculator in Legal Calculators, or talk to us about websites and marketing for law firms.
More tools and services
- 1031 Exchange Calculator
- 401(k) Contribution Optimizer
- 529 College Savings Calculator
- A/B Test Significance Calculator
- Accessible Ramp Calculator
- Accounts Payable Aging Calculator
If you would rather someone did this properly for you, we offer Web Design Services and Website Development, SEO Services: Search Engine Optimization, AI Automation Agency.
Questions
Questions about this tool
The things clients actually want to know — costs, timelines, ownership and what happens after launch.
Rates vary by field, often several hundred dollars an hour, higher for testimony.
Often the party requesting the deposition, depending on court rules.
Terms vary; some retainers are applied to the final bill, others are non-refundable.
Free strategy session
Let’s build something worth finding.
Tell us where you want the business to be in twelve months. We will come back with a costed plan, a realistic timeline, and the numbers we expect to move — no obligation, no jargon.
- 30-minute call, no pitch deck
- Fixed-price proposal in 48 hours
- You own everything we build
Talk to a developer
Not a sales team
- Response time
- Within 1 business hour
- Where we work
- UK, USA & the Gulf
- Contracts
- No lock-in, monthly rolling
- Working since
- 2023