- Cost
- $32.71
- EV
- 44%
- $14.40
- Profit
- −$20.19
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.099 (needs < 0.100)3 outcomesActive market
Reverse trade-up finder
Trade up to M4A1-S | Black Lotus
10 Restricted skins from the Kilowatt Case collection can become M4A1-S | Black Lotus. 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 M4A1-S | Black Lotus needs an average normalized input float below 0.1000 (output float 0.000–0.070). Best chance per contract: 33.3%.
- Cost
- $141.44
- EV
- 58%
- $81.40
- Profit
- −$70.66
- after fee
- Win %
- 40%
- to profit
Avg float ≤ 0.099 (needs < 0.100)5 outcomesSome thin prices
- Cost
- $30.30
- EV
- 55%
- $16.72
- Profit
- −$15.76
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.099 (needs < 0.100)6 outcomesSome thin prices
- Cost
- $29.80
- EV
- 40%
- $12.01
- Profit
- −$19.35
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.099 (needs < 0.100)6 outcomesActive market
- Cost
- $27.98
- EV
- 47%
- $13.25
- Profit
- −$16.46
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.100 (needs < 0.100)6 outcomesActive market
- Cost
- $29.52
- EV
- 40%
- $11.78
- Profit
- −$19.28
- after fee
- Win %
- 0%
- to profit
Avg float ≤ 0.100 (needs < 0.100)6 outcomesActive market
Required input float for each M4A1-S | Black Lotus wear
| Wear | Output float | Avg normalized input float | Cheapest route | Best chance |
|---|---|---|---|---|
| Factory New | 0.000–0.070 | < 0.1000 | $27.98 | 33.3% |
| Minimal Wear | 0.070–0.150 | ≥ 0.1000 and < 0.2143 | no priced route | — |
| Field-Tested | 0.150–0.380 | ≥ 0.2143 and < 0.5429 | $5.11 | 33.3% |
| Well-Worn | 0.380–0.450 | ≥ 0.5429 and < 0.6429 | no priced route | — |
| Battle-Scarred | 0.450–0.700 | ≥ 0.6429 and any | $4.77 | 33.3% |
The average is over every input's float normalized to its own range. Output float = 0.00 + average × 0.70.
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.