California PD ratings in under a minute.
RateString turns WPI into a defensible permanent-disability rating — the DEU rating string, Combined Values, apportionment, and indemnity — recalculating live as you type.
What the calculator does
Live, not a form
No Calculate button, no reload. Every keystroke reflows the rating string, the Combined Values, and the dollar figures.
The math, done right
SB 863 1.4×, occupational and age tables from the official PDRS, the Combined Values Chart, §4663 apportionment, the pain add-on, and the single-extremity cap.
Show the work
Every rating reads back as the DEU string with a step-by-step, traceable breakdown — the part that makes it defensible.
Always-current rates
Statutory weekly-rate caps and PD-weeks brackets are versioned by year, so a rating is never run on a stale table.
The artifact you paste into the report.
Free to rate. Pay to keep.
The calculator is free. Every account starts with 14 days of Pro — no card — and you pay only to keep saving, exporting, and sharing.
Compare every feature →Rating-schedule changes, the moment they land.
Occasional updates on California PD rules, rate caps, and new RateString features. No spam, unsubscribe anytime.