Free tool · Inventory velocity + aging calculator
Plug in your inventory, your floor plan rate, and your age buckets. We surface your real turn rate, your monthly floor-plan bleed, and which 60 / 90 / 120+ day units are quietly costing you the most.
Your aged-stock exposure
Carry / month
$20,614
Est. depreciation / month
$54,120
That’s per year
$896,804
$74,734/mo leaving the door before a single car gets discounted. Depreciation estimated at 1.5% per 30-day band — industry rule of thumb, not a peer-reviewed study.
Inventory snapshot
Aged inventory by day band
Count units in each age band. The composition bar on the right updates live, and the recommendation engine fires once 120+ units appear.
Tip: buckets don’t need to sum to total units — we show them as a composition, not a reconciliation.
Inventory turn
Healthy used-car turn is 1.0 – 1.5x monthly (12 – 18x annualized).
Floor plan bleed
Cost of capital on what’s parked, before a single discount.
Aged-stock composition
120 units total
Aged-stock exposure
Per-bucket: monthly floor-plan carry + estimated 1.5%-per-30-day depreciation (industry rule of thumb).
| Band | Units | Monthly carry | Est. dep / mo |
|---|---|---|---|
| 0–30 days | 42 | $7,215 | $0 |
| 31–60 | 30 | $5,153 | $9,900 |
| 61–90 | 22 | $3,779 | $14,520 |
| 91–120 | 14 | $2,405 | $13,860 |
| 120+ | 12 | $2,061 | $15,840 |
| Total | 120 | $20,614 | $54,120 |
Recommendations
DII over 60 — your aging tail is your bottleneck
Industry rule of thumb: aged inventory turns slower AND costs more per day in carry, so it compounds. Consider a wholesale exit on units 90+ days that haven't seen 3 price moves — the floor plan clock is louder than the gross you're hoping to recover.
12 units past 120 days
Industry rule of thumb: wholesale at 100 days unless you have a documented buyer. These units are eating per-day carry, accruing depreciation, and crowding out faster-turning stock. Estimated monthly bleed on the 120+ band alone: $17,901.
Monthly turn 0.40x — below the 1.0 healthy line
Healthy used-car turn is 1.0–1.5x monthly (12–18x annually). Your turn rate suggests you're stocking ahead of demand. Consider trimming acquisition by ~15% over the next 30 days while you work the aged tail down.
22% of your lot is past 90 days
Industry rule of thumb: keep 90+ day inventory under 15% of total units. Above that, the aged tail starts pulling the floor plan line and consuming sales-team attention from fresh, conversion-friendly stock.
Numbers shown are computed live in your browser — nothing is sent anywhere until you submit the email form. Depreciation modeled at 1.5% per 30-day band; healthy benchmarks come from 20-year operator floor experience + Gladius pilot data across three live rooftops. Rules of thumb, not a peer-reviewed survey.