Legal Calculators — Free DUI, Personal Injury & Workers Comp Tools 2026
Every legal calculator you find through a Google search belongs to a law firm. The tool gives you a number. The page gives you a phone number. Within 90 seconds, an attorney is calling. You didn’t want a consultation. You wanted to understand your situation before deciding whether you need one.
These three free legal calculators give you the numbers first — state-specific DUI costs, personal injury settlement estimates using the multiplier method, and workers’ compensation benefits based on your state’s actual formula. No lead form. No attorney callback. No data collected. Understand your position, then decide what to do with it.
All Free Legal Calculators
DUI Calculator — Total Cost Estimator
A DUI charge in the United States costs far more than the fine listed on your court paperwork. The DUI calculator adds up every cost category across your specific state — court fines, attorney fees, mandatory alcohol education program, license reinstatement fee, ignition interlock device installation and monthly rental, and the SR-22 insurance surcharge that follows you for 3 to 5 years after the conviction.
What the DUI calculator shows:
- Total estimated DUI cost for your state (all 50 states covered)
- Year-by-year cost breakdown — first year is always the highest
- SR-22 insurance surcharge impact on your annual premium
- Whether a refusal checkbox applies (implied consent penalty in your state)
- Accident toggle — additional civil liability if someone was injured
The average first-year DUI cost in the United States runs $10,000 to $25,000 depending on state, prior record, and whether an accident was involved. California averages $13,500 for a first offense. Texas averages $17,000. New York averages $21,000. The calculator uses state-specific data — not national averages — because DUI costs vary more by state than almost any other legal cost category.
Who uses the DUI calculator: Anyone who has been charged, anyone trying to understand the financial consequences before a plea decision, anyone budgeting for an attorney, or anyone comparing the cost of fighting the charge versus accepting a plea.
Personal Injury Calculator — Settlement Estimate
The multiplier method is how insurance companies and attorneys calculate personal injury settlements — special damages (medical bills, lost wages, property damage) multiplied by a factor based on injury severity. The personal injury calculator uses this same formula, with multipliers that reflect real 2026 settlement data rather than theoretical ranges.
What the personal injury calculator shows:
- Special damages total (economic losses you can document)
- Pain and suffering estimate using multiplier method (1.5× to 5×)
- Total settlement estimate range — conservative and mid-range
- FICA offset calculation (relevant for workers in government-covered positions)
- Comparative negligence adjustment (if you were partially at fault)
How the multiplier method actually works:
The multiplier is not arbitrary. It is set by the nature and permanence of the injury:
| Injury Type | Typical Multiplier | Notes |
|---|---|---|
| Minor soft tissue, full recovery | 1.5× – 2.0× | Whiplash, sprains |
| Moderate injury, partial recovery | 2.0× – 3.0× | Disc injury, fractures |
| Significant injury, lasting impact | 3.0× – 4.0× | Surgery required, residual pain |
| Severe injury, permanent disability | 4.0× – 5.0× | Paralysis, permanent impairment |
| Catastrophic or DUI-involved | 5.0×+ | Punitive damages possible |
Most competitors’ personal injury calculators are on law firm websites and use the estimate to justify a free consultation. This calculator gives you the same methodology with no follow-up contact.
Who uses the personal injury calculator: Anyone injured in a car accident, slip and fall, workplace accident, or any incident caused by another party’s negligence — before deciding whether to hire an attorney or accept an insurance company’s initial offer.
Workers Compensation Calculator — Benefit Estimate
Workers’ compensation benefits are calculated using your state’s formula — not a national average and not a flat percentage. The workers comp calculator uses your state’s Average Weekly Wage (AWW) formula, your injury classification (temporary total disability, permanent partial, permanent total), and your specific impairment rating to estimate your weekly benefit and total compensation.
What the workers comp calculator shows:
- Weekly TTD (Temporary Total Disability) benefit — typically 66.67% of AWW
- PPD (Permanent Partial Disability) benefit if applicable — state-specific weeks × impairment rate
- PTD (Permanent Total Disability) benefit for catastrophic injuries
- Maximum weekly benefit cap for your state (varies from $600 to $2,000+/week)
- Whether your state uses the multiplier method or scheduled loss method for PPD
Why state matters so much in workers comp:
The same injury producing the same impairment rating produces vastly different compensation depending on your state:
| State | Max Weekly Benefit (2026) | TTD Rate | PPD Method |
|---|---|---|---|
| California | $1,620/week | 66.67% AWW | Impairment rating |
| New York | $1,145/week | 66.67% AWW | Scheduled loss |
| Texas | $1,012/week | 70% AWW | Impairment rating |
| Florida | $1,197/week | 66.67% AWW | Impairment rating |
| Illinois | $1,897/week | 66.67% AWW | Scheduled loss |
A back injury with 15% whole-body impairment rating pays approximately $31,000 in Texas but approximately $58,000 in Illinois under the same facts. The calculator uses your state’s actual formula and current maximum weekly benefit rates.
Who uses the workers comp calculator: Anyone injured at work who wants to understand their benefit entitlement before or during a workers’ compensation claim — particularly before signing any settlement agreement with an employer’s insurance carrier.
Why Legal Calculators Are Different from Other Financial Calculators
The Information Asymmetry Problem
Every other financial calculator — mortgage, investment, tax — is based on published formulas. Anyone can verify the output. Legal calculators are different because the underlying formulas are not widely understood by the public, the inputs (injury multipliers, state-specific rates, AWW calculations) are not intuitively obvious, and the stakes of getting it wrong are significantly higher.
Insurance companies and employers’ workers’ comp carriers know the formulas. Their adjusters use them every day. Most claimants don’t — which is exactly why insurance companies’ first settlement offers are typically 30% to 50% below the calculated value of the claim.
These calculators are designed to close that information gap. Knowing the formula doesn’t replace an attorney in a complex case. But it prevents you from accepting a settlement that is obviously below what the formula produces.
What Legal Calculators Cannot Tell You
These tools provide estimates based on publicly available formulas and state-specific data. They cannot account for:
Jurisdiction-specific variables: Judges in different counties apply multipliers differently. Local jury history affects what cases settle for versus what they might win at trial. The calculator uses state averages.
Evidence quality: A personal injury case with clear liability, strong medical documentation, and witness statements is worth more than the same injury with disputed fault. The calculator assumes standard evidence quality.
Insurance policy limits: A personal injury settlement is capped at the at-fault party’s insurance policy limit. If the at-fault driver carries minimum liability ($15,000 in many states), the calculated value of your claim may be irrelevant — the recovery is limited to that amount.
Attorney negotiation: Represented claimants consistently recover more than unrepresented claimants — the NOLO survey average was $77,600 with an attorney versus $52,900 without. The calculator gives you a baseline; an experienced attorney improves the outcome from that baseline.
Statutory caps: Some states cap pain and suffering damages in specific case types (medical malpractice, government defendants). These caps are not universally applied but are state-specific.
Use these calculators to understand your position. Use them to evaluate an initial insurance offer. Use them to have an informed conversation with an attorney if you decide to hire one.
How to Use Legal Calculators Effectively
Step 1 — Gather Your Documentation First
All three calculators produce more accurate estimates when you have actual numbers rather than estimates. Before running the DUI calculator: have your citation and any attorney quotes. Before the personal injury calculator: have your medical bills, lost wage calculation, and property damage total. Before the workers comp calculator: have your last 52 weeks of pay stubs for an accurate AWW.
Step 2 — Run Conservative and Realistic Scenarios
Each calculator allows you to toggle inputs. Run the conservative scenario (lower multiplier, no punitive damages, standard deductible) and the realistic scenario (injury-appropriate multiplier, your actual state’s caps). The range between these two is your realistic settlement range.
Step 3 — Compare Against Any Offer You’ve Received
If an insurance company has already made an offer, run the calculator with your actual inputs and compare. If the offer is below the conservative estimate, it is almost certainly below fair value. If it falls within the calculated range, it may reflect a specific weakness in the case (contested liability, policy limits) that the calculator cannot see.
Step 4 — Use the Result to Prepare, Not to Conclude
A legal calculator tells you what the formula produces. An attorney tells you what the formula produces adjusted for every case-specific factor the calculator cannot see. Use the calculator result as your starting baseline for any conversation — with an insurance adjuster, with an employer, or with an attorney.
Legal Calculator FAQs
How accurate are these legal calculators?
These calculators use the same formulas that insurance companies and attorneys use — multiplier method for personal injury, state AWW formula for workers comp, and state-specific DUI cost data. For straightforward cases with clear liability, standard documentation, and average injury severity, estimates are typically within 15–25% of actual settlement amounts. For complex cases with disputed liability, unusual injuries, or policy limit constraints, the calculator provides a useful baseline but professional legal advice is essential.
Do I need a lawyer if I use these calculators?
Not necessarily — but the decision depends on your specific situation. For minor injuries with clear liability and cooperative insurers, a calculator-informed self-negotiation is possible. For moderate to serious injuries, disputed liability, permanent impairment, or any case involving a DUI at-fault party, professional legal representation consistently produces better outcomes. The calculators help you understand what you’re working with. What you do with that information depends on the complexity of your case.
Are these legal calculator results admissible in any legal proceeding?
No. These calculators produce estimates for personal planning and informational purposes only. They do not constitute legal advice, do not create any legal relationship, and are not admissible as evidence in any legal proceeding. Always consult a qualified attorney licensed in your state for advice specific to your situation.
What is the multiplier method in personal injury cases?
The multiplier method calculates pain and suffering damages by multiplying your total special damages (medical bills + lost wages + property damage) by a number between 1.5 and 5 or higher, depending on injury severity and permanence. Insurance companies use this method internally. The personal injury calculator applies injury-appropriate multipliers based on standard industry practice and 2026 settlement data.
How is workers’ compensation calculated?
Workers’ comp benefits are calculated using your state’s formula, which typically starts with your Average Weekly Wage (AWW) — your total wages over the past 52 weeks divided by 52. Temporary total disability (TTD) pays approximately 66.67% of your AWW, subject to your state’s maximum weekly benefit cap. Permanent partial disability (PPD) is calculated either by impairment rating (your impairment percentage × state’s maximum weeks × your weekly rate) or by scheduled loss (a fixed number of weeks for specific body parts). The workers comp calculator uses your state’s specific formula and current 2026 benefit rates.
What is SR-22 insurance and how does the DUI calculator include it?
SR-22 is a certificate of financial responsibility that your insurance company files with your state’s DMV after a DUI conviction. It is not a type of insurance — it is a filing that certifies you carry the state’s minimum required coverage. The SR-22 filing itself costs $25–$50. The real cost is the insurance premium surcharge that comes with it — because DUI convictions classify you as high-risk, your premiums typically increase 60%–100% for 3 to 5 years. The DUI calculator adds this cumulative surcharge to your total cost estimate.
Can I use these calculators for legal matters outside the United States?
These calculators are designed for US legal contexts only. DUI costs, workers’ compensation formulas, and personal injury multiplier practices differ significantly in Canada, the UK, Australia, and other jurisdictions. Using US-specific formulas for non-US cases will produce inaccurate results.
Related Tools
For anyone going through a legal situation that also has financial implications — a DUI affecting employment income, an injury that affects earning capacity, or a workers’ comp case intersecting with disability income — these tools help you understand the broader financial picture:
The paycheck calculator shows how income changes during medical leave or reduced hours affect your take-home pay — useful when calculating lost wages for a personal injury claim. For DUI cases where attorney fees or fine payment plans affect monthly budget, the loan calculator models the cost of financing legal expenses. And to understand how a legal settlement or lump-sum workers’ comp payout fits into your overall financial position, the net worth calculator maps settlement proceeds as an asset against existing liabilities.