This is the percentage of function you lost, usually set by doctors’ impairment ratings and negotiation. Most contested cases settle between ratings. Not sure? Leave it at a middle value and talk to us.
Gross pay, before taxes. Don’t know it? Divide your annual pay by 52.
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PPD is one part of an Illinois work injury claim. Medical bills, temporary disability checks, wage differential, and disfigurement can add substantially more. Rates shown apply to injuries from July 1, 2025 through June 30, 2026.
How Illinois Calculates a Workers’ Comp Settlement
Unlike a car accident case, an Illinois permanent partial disability award is not a negotiation from scratch. Section 8(e) of the Illinois Workers’ Compensation Act assigns every body part a fixed number of weeks. Three numbers decide the baseline value of your injury:
Scheduled weeks
Each body part is worth a set number of weeks under the law. A hand is 205 weeks. An arm is 253. A leg is 215. Injuries to the back, neck, or body as a whole use 500 weeks.
Loss-of-use percentage
Doctors rate how much function you permanently lost. A 10% loss of a hand means 10% of 205 weeks, or 20.5 weeks of benefits. This rating is where most cases are won or lost.
Your PPD rate
You receive 60% of your average weekly wage for each week, capped at the state maximum of $1,084.66 for injuries from July 1, 2025 through June 30, 2026.
Example: A warehouse worker earning $1,000 per week suffers a hand injury with a 10% loss-of-use rating. The math: 205 weeks × 10% = 20.5 weeks. The rate: 60% of $1,000 = $600. The PPD award: 20.5 × $600 = $12,300, on top of paid medical bills and temporary disability checks.
Current Illinois Workers’ Comp Rates (2025-2026)
The Illinois Workers’ Compensation Commission updates benefit-rate maximums twice a year based on the statewide average weekly wage. These are the current figures this calculator uses:
| Rate | Amount | Applies to |
|---|---|---|
| PPD rate formula | 60% of your average weekly wage | Permanent partial disability awards |
| Maximum PPD rate | $1,084.66 per week | Injuries July 1, 2025 to June 30, 2026 |
| TTD rate formula | 66 2/3% of your average weekly wage | Paid while you cannot work at all |
| Maximum TTD rate | $2,008.60 per week | Injuries January 15, 2026 to July 14, 2026 |
| Statewide average weekly wage | $1,506.49 | The basis for the caps above |
Source: Illinois Workers’ Compensation Commission benefit-rate tables. If your injury date falls outside these windows, different maximums apply to your claim.
Illinois Body Part Injury Values (2025-2026)
Maximum values below assume a 100% loss at the current maximum PPD rate of $1,084.66 per week. Most injuries involve partial loss, so real awards are a percentage of these figures.
| Body part | Scheduled weeks | Maximum value |
|---|---|---|
| Back, neck, or body as a whole | 500 | $542,330 |
| Shoulder (body as a whole) | 500 | $542,330 |
| Hip (body as a whole) | 500 | $542,330 |
| Arm | 253 | $274,419 |
| Leg | 215 | $233,202 |
| Hearing, both ears | 215 | $233,202 |
| Hand | 205 | $222,355 |
| Foot | 167 | $181,138 |
| Eye (loss of sight) | 162 | $175,715 |
| Thumb | 76 | $82,434 |
| Hearing, one ear | 54 | $58,572 |
| Index finger | 43 | $46,640 |
| Middle finger | 38 | $41,217 |
| Great toe | 38 | $41,217 |
| Ring finger | 27 | $29,286 |
| Little finger | 22 | $23,863 |
| Any other toe | 13 | $14,101 |
Source: 820 ILCS 305/8(e) schedule for injuries on or after February 1, 2006; amputations above the elbow or knee add weeks. Illinois courts treat shoulder and hip injuries as body-as-a-whole claims.
Want the full breakdown of what each injury is worth at different ratings? See our Illinois workers’ comp settlement chart.
What This Calculator Does Not Include
The PPD formula is the floor, not the ceiling. A full Illinois workers’ compensation claim can also include:
- All medical treatment, paid by the employer’s insurance with no deductible
- Temporary total disability (TTD): 66 2/3% of your wage for every week you cannot work
- Wage differential: if you must take a lower-paying job, 66 2/3% of the difference, payable to age 67 or for 5 years, whichever is later
- Disfigurement: up to 162 weeks for serious and permanent scarring
- Penalties when an insurer unreasonably delays or denies payment
Insurance companies know most injured workers never run this math. That is exactly why they make early lowball offers before your rating is established. Learn more about your rights from our Illinois workers’ compensation lawyers.
Illinois Workers’ Comp Settlement FAQs
Get a Free Review of Your Number
Your loss-of-use rating is negotiable, and it is the single biggest lever in your settlement. An attorney will tell you, honestly and for free, whether your case is worth more than the calculator shows.
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This calculator provides an estimate of permanent partial disability benefits under the Illinois Workers’ Compensation Act based on the figures you enter. It is not legal advice and not a guarantee of any result. Actual benefits depend on your documented wages, medical evidence, disputed ratings, and IWCC approval. Rates shown apply to injuries occurring July 1, 2025 through June 30, 2026 and are updated by the IWCC. Attorney Advertising.
