- Cost
- $33.94
- EV
- 44%
- $14.81
- Profit
- −$21.06
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.094 (needs < 0.096)3 outcomesActive market
Reverse trade-up finder
Trade up to M4A4 | Tooth Fairy
10 Restricted skins from the Fracture Case collection can become M4A4 | Tooth Fairy. Pick a wear to see every realistic route, its odds, cost and the input float it needs.
Prices as of Oct 27, 2026Steam Community Market averages · snapshot 2026-10-27 10:25 UTC
Factory New M4A4 | Tooth Fairy needs an average normalized input float below 0.0959 (output float 0.000–0.070). Best chance per contract: 33.3%.
- Cost
- $33.04
- EV
- 57%
- $18.77
- Profit
- −$16.72
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.093 (needs < 0.096)6 outcomesActive market
- Cost
- $33.08
- EV
- 60%
- $19.95
- Profit
- −$15.73
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.093 (needs < 0.096)6 outcomesActive market
- Cost
- $32.45
- EV
- 56%
- $18.06
- Profit
- −$16.75
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.093 (needs < 0.096)6 outcomesActive market
- Cost
- $29.91
- EV
- 45%
- $13.58
- Profit
- −$18.10
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.096 (needs < 0.096)6 outcomesActive market
- Cost
- $61.53
- EV
- 60%
- $37.20
- Profit
- −$29.18
- after fee
- Win %
- 30%
- to profit
Avg float ≤ 0.095 (needs < 0.096)6 outcomesActive market
Required input float for each M4A4 | Tooth Fairy wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.0959 | $29.91 | 33.3% |
| Minimal Wear | 0.070–0.150 | ≥ 0.0959 and < 0.2055 | no priced route | — |
| Field-Tested | 0.150–0.380 | ≥ 0.2055 and < 0.5205 | $5.12 | 33.3% |
| Well-Worn | 0.380–0.450 | ≥ 0.5205 and < 0.6164 | no priced route | — |
| Battle-Scarred | 0.450–0.730 | ≥ 0.6164 and any | no priced route | — |
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.73.
Other trade-up targets in this collection
How CS2 trade-up contracts work
Inputs & odds
10 skins of one rarity become 1 skin of the next rarity (Mil-Spec → Restricted → Classified → Covert). Since the October 2025 update, 5 Covert skins can become a knife or gloves from those skins' case. Each input collection gets its share of the odds (inputs from it ÷ total), split evenly across that collection's next-tier skins.
Float math
Every input float is normalized to its own skin's range — (float − min) ÷ (max − min) — and averaged. Each output's float is its min + average × (max − min), so a restricted-range skin like 0.10–0.20 can only land in the wears its range allows.
Prices, fees & freshness
Values are Steam Community Market averages from the snapshot dated on each page. Profit subtracts the ~13% Steam seller fee. StatTrak™ inputs give StatTrak™ outputs (knives only — gloves have no StatTrak™). Map collections outside weapon cases aren't in DropLabz's dataset yet.
Pick the skin you want in the reverse trade-up finder, check any contract in the trade-up calculator, or compare with opening cases on case ROI and knife odds.