Free tools · one verified engine

Every workers’ comp calculator, in one place.

Seventeen free tools, one engine — the same tables, the same math, verified against the DIR’s published worked examples and covered by an automated test suite. No account for any of them.

The main event

PD rating calculator

WPI in — the full 2005-schedule pipeline out: ×1.4, occupational variant, age, apportionment, CVC combination, and the DEU-format rating string with the dollars.

Open the calculator
Settlement

Settlement calculator

Final PD % + wage + injury year → weeks of PD, the weekly rate, total indemnity, the life-pension line at 70%, and the attorney-fee estimate.

Price a rating
70%+ ratings

Life pension calculator

Ratings of 70–99% earn a second benefit for life. The §4659(a) formula computed on your PD %, wage, and injury year — the cap, the COLA rule, and when it starts.

Compute a life pension
Conversion

WPI → PD calculator

The doctor’s impairment number is not the payable percentage. Convert WPI through the ×1.4, occupation, and age steps — live, with a reference table.

Convert a WPI
Wage replacement

TD rate calculator

Temporary disability from AWW + injury year: the weekly rate against the statutory min/max, the biweekly check, and every year’s caps since 2013.

Compute a TD rate
The base number

AWW calculator

Every check starts from the average weekly wage. Enter pay in any period — hourly to annual — and get the AWW plus the TD and PD rates against the year’s statutory rails.

Compute an AWW
Psych ratings

GAF → WPI calculator

The psychiatric conversion: a GAF score read against the exact PDRS p.1-16 table, then rated to PD — with the §4660.1(c) compensability limits explained.

Convert a GAF
Clocks

Deadline calculator

The statutory dates every file tracks — the 90-day decision window, the earliest §5405 limitations date, the §5410 five-year window, the TD outer boundary — from a date of injury.

Run the clocks
Reference

PD money chart

Every percentage 1–99 converted to weeks and dollars for any injury year since 2005 — wage-personalized, printable, embeddable.

Open the chart
Audit

Rating-string decoder

Paste any DEU-style rating string. Every segment decoded and the math verified against the PDRS tables — including the implied age bracket.

Decode a string
Volume

Batch rating

CSV rows in — impairment, WPI, group, age, apportionment, year — engine-rated PD, weeks, dollars, and strings back for every claim at once.

Rate a list
Statute

Rate caps by year

The statutory PD and TD weekly minimums and maximums for every injury year 2005–2026, straight from the engine’s tables.

See the caps
By injury

Settlement chart

Sixteen injury families — back, fusion, knee, carpal tunnel, hearing, amputations, psych — priced across the occupational range at the current maximum, each linking a deep guide.

Open the chart
Multi-part

Combined values calculator

The CVC, computed: enter any number of impairment percentages and watch the schedule’s fold — largest first, rounded at each step — plus the reference chart and what the total is worth.

Combine ratings
New law · 2026

SIBTF calculator

The Subsequent Injuries Fund doors, rewritten July 2026: WPI after apportionment against the 35% and 5% thresholds, the 70% combined floor, and the new filing deadline — checked in one pass.

Check a claim
Lump sums

Commutation calculator

The present value of a PD award at 3%, straight from the DWC’s own commutation table (CCR §10169, Table 1) — the discount every lump-sum and attorney-fee conversation is priced on.

Run the table
Late awards

Award interest calculator

Unpaid WCAB awards accrue 10% per annum under §5800. Amount + dates in — the days, the daily interest, and the total due out, with the §4650(d) and §5814 distinctions explained.

Run the interest

Working a claims desk? The adjuster workflow page chains these into same-day reserves. New to ratings? Start with how PD is calculated. Estimates for informational use; verify against the DEU. Not legal advice.

Stay in the loop

Rating-schedule changes, the moment they land.

Occasional updates on California PD rules, rate caps, and new RateString features. No spam, unsubscribe anytime.