Illinois workers' compensation provides strong protections for injured workers. Permanent partial disability (PPD) benefits for scheduled injuries are calculated based on the body part injured and the percentage loss of use. Illinois maximum benefit rates are updated twice a year.
1
State & Injury
Where & what type
2
Your Wages
Weekly earnings
3
Impairment
Body part & rating
Low Estimate
—
Mild / best case
—
Based on state formula
High Estimate
—
Severe / disputed
How This Was Calculated — Step by Step
State Formula| Step | Formula / Calculation | Result | Notes |
|---|
Illinois Workers' Comp Formula Explained
Illinois uses a scheduled body part system for PPD. The PPD benefit equals 60% of the average weekly wage multiplied by the scheduled number of weeks for the body part. TTD is 66.67% of AWW, capped at the state maximum (updated January 15 and July 15 each year).
SLU Formula:
Compensable Weeks = (Scheduled Max Weeks for Body Part) × (% Loss of Use / 100)
Weekly SLU Rate = AWW × 66.67%, capped at $2,008.60/week
Total Award = Compensable Weeks × Weekly SLU Rate
Weekly SLU Rate = AWW × 66.67%, capped at $2,008.60/week
Total Award = Compensable Weeks × Weekly SLU Rate
Illinois Body Part Schedule (Maximum Weeks)
| Body Part | Maximum Weeks | Category |
|---|---|---|
| Arm | 253 | Extremity |
| Arm Above Elbow Amputation | 270 | Extremity |
| Arm at Shoulder Amputation | 323 | Extremity |
| Leg | 215 | Extremity |
| Leg Above Knee Amputation | 242 | Extremity |
| Leg at Hip Amputation | 296 | Extremity |
| Hand | 205 | Extremity |
| Foot | 167 | Extremity |
| Thumb | 76 | Extremity |
| Index Finger | 43 | Extremity |
| Middle Finger | 38 | Extremity |
| Ring Finger | 27 | Extremity |
| Little Finger | 22 | Extremity |
| Eye | 162 | Sensory |
| Eye Enucleation | 173 | Sensory |
| Great Toe | 38 | Extremity |
| Other Toe | 13 | Extremity |
| Hearing Loss (One Ear) | 54 | Sensory |
| Hearing Loss (Both Ears) | 215 | Sensory |
| Disfigurement | 162 | Disfigurement |
How to Use This Calculator
- Select Illinois from the state dropdown (already selected).
- Choose your injury type: TTD (lost wages while out), PPD (permanent impairment), or Both.
- Select your injured body part from the schedule dropdown.
- Enter your Average Weekly Wage (AWW) — your gross weekly pay before the injury.
- Enter your % Loss of Use as determined by your treating physician or IME.
- Select your case severity to adjust the estimate range.
- Click Calculate to see your estimate with the full math breakdown.
Average Illinois Workers' Comp Settlement Ranges
Settlement amounts vary significantly based on injury severity, body part, AWW, and the specific facts of each case. The ranges below are illustrative based on the Illinois formula at a $900/week AWW:
| Injury Scenario | Approximate Range | Key Variable |
|---|---|---|
| Minor finger injury (20% LoU) | $2,500 – $5,000 | 22–43 scheduled weeks |
| Hand injury (30% LoU) | $30,000 – $55,000 | 205 max weeks |
| Arm injury (35% LoU) | $40,000 – $75,000 | 253 max weeks |
| Eye injury (50% LoU) | $40,000 – $70,000 | 162 max weeks |
Frequently Asked Questions — Illinois Workers' Comp
▶
How is Illinois PPD calculated for scheduled injuries?
Illinois PPD for scheduled injuries equals 60% of your average weekly wage multiplied by the number of scheduled weeks for your body part, adjusted for your percentage loss of use. For example, an arm injury with 25% loss of use: 60% × AWW × 253 weeks × 25%.
▶
What is the maximum weekly benefit in Illinois?
The maximum weekly TTD benefit in Illinois is $2,008.60 (effective July 15, 2025). This rate is updated every January 15 and July 15.
▶
How often are Illinois workers' comp rates updated?
Illinois updates its workers' compensation maximum benefit rates twice per year: on January 15 and July 15. Your benefit rate is locked in based on the rates in effect on your date of injury.
▶
What body parts are covered under Illinois scheduled injuries?
Illinois covers arms, legs, hands, feet, thumbs, fingers, toes, eyes, and hearing loss under its scheduled injury system. Disfigurement is also scheduled at up to 162 weeks.
▶
Can I receive both TTD and PPD benefits in Illinois?
Yes. TTD benefits are paid while you are temporarily unable to work. Once you reach maximum medical improvement, you may be entitled to PPD benefits for any permanent loss of use of a scheduled body part.
▶
How is Illinois workers' comp different from New York?
Both states use scheduled body part systems, but Illinois PPD is calculated at 60% of AWW while New York uses 2/3 (66.67%) of AWW. Illinois also has higher maximum benefit rates and updates them twice yearly.
Legal Disclaimer: This calculator provides estimates for informational purposes only and
does not constitute legal advice. Workers' compensation law is complex and varies by state, employer, and
individual circumstances. Consult a licensed workers' compensation attorney for advice specific to your
situation.