Butterfly Knife CS2: cases, finishes, prices & how to trade up for one
The Butterfly Knife has 25 finishes in CS2 and drops from 5 cases: Dreams & Nightmares Case, Operation Breakout Weapon Case, Operation Riptide Case, Spectrum 2 Case, Spectrum Case. You can also get one by trading up 5 Covert skins from any of those cases – the best odds are in the Operation Breakout Weapon Case pool, where each Butterfly Knife finish has a 7.69% chance.
- Finishes: Vanilla, Autotronic, Black Laminate, Blue Steel, Boreal Forest, Bright Water, Case Hardened, Crimson Web, Damascus Steel, Doppler, Fade, Forest DDPAT, Freehand, Gamma Doppler, Lore, Marble Fade, Night, Rust Coat, Safari Mesh, Scorched, Slaughter, Stained, Tiger Tooth, Ultraviolet, Urban Masked.
- Chance per finish by case: Dreams & Nightmares Case 3.33% · Operation Breakout Weapon Case 7.69% · Operation Riptide Case 3.33% · Spectrum 2 Case 3.33% · Spectrum Case 3.33%.
- Chance of any Butterfly Knife: Dreams & Nightmares Case 20% · Operation Breakout Weapon Case 100% · Operation Riptide Case 20% · Spectrum 2 Case 20% · Spectrum Case 20%.
Cheapest trade ups that can give a Butterfly Knife
5 Covert contracts from the cases above, ranked by ROI at today’s prices. The result is random within the case pool – the calculator shows every possible outcome.
| Contract | Cost | EV | ROI | Chance of profit | |
|---|---|---|---|---|---|
| 5× P90 | Asiimov StatTrak™ FT Covert → Knife / Gloves | $993.80 | $1,014 | +2.0% | 53.8% | Open in calculator |
| 5× M4A1-S | Cyrex StatTrak™ MW Covert → Knife / Gloves | $1,070 | $1,032 | -3.5% | 38.5% | Open in calculator |
| 5× P90 | Asiimov StatTrak™ BS Covert → Knife / Gloves | $996.05 | $909.91 | -8.6% | 30.8% | Open in calculator |
| 5× M4A1-S | Cyrex StatTrak™ WW Covert → Knife / Gloves | $1,025 | $909.91 | -11.2% | 30.8% | Open in calculator |
| 5× M4A1-S | Cyrex WW Covert → Knife / Gloves | $1,046 | $864.75 | -17.3% | 23.1% | Open in calculator |
| 5× M4A1-S | Cyrex MW Covert → Knife / Gloves | $1,160 | $942.49 | -18.7% | 30.8% | Open in calculator |
| 5× P90 | Asiimov BS Covert → Knife / Gloves | $1,066 | $864.75 | -18.8% | 23.1% | Open in calculator |
| 5× M4A1-S | Cyrex FN Covert → Knife / Gloves | $1,236 | $1,002 | -18.9% | 23.1% | Open in calculator |
| 5× M4A1-S | Cyrex FT Covert → Knife / Gloves | $1,087 | $859.49 | -20.9% | 23.1% | Open in calculator |
| 5× AK-47 | Nightwish StatTrak™ MW Covert → Knife / Gloves | $429.70 | $339.60 | -21.0% | 20.0% | Open in calculator |
| 5× MP9 | Starlight Protector StatTrak™ FT Covert → Knife / Gloves | $375.00 | $287.52 | -23.3% | 20.0% | Open in calculator |
| 5× AK-47 | Nightwish StatTrak™ WW Covert → Knife / Gloves | $375.00 | $282.21 | -24.7% | 20.0% | Open in calculator |
| 5× M4A1-S | Cyrex StatTrak™ FN Covert → Knife / Gloves | $1,402 | $1,051 | -25.0% | 23.1% | Open in calculator |
| 5× MP9 | Starlight Protector StatTrak™ FN Covert → Knife / Gloves | $630.75 | $454.40 | -28.0% | 20.0% | Open in calculator |
| 5× AK-47 | Nightwish StatTrak™ BS Covert → Knife / Gloves | $379.95 | $272.70 | -28.2% | 20.0% | Open in calculator |
Steam Market prices, snapshot of 2026-09-27 (USD, before fees); the table refreshes with live prices on page load. Knives and gloves above Steam's $2,000 listing cap use the lowest marketplace price.
All Butterfly Knife finishes and prices
Butterfly Knife FAQ
Which cases have the Butterfly Knife in CS2?
The Butterfly Knife drops from Dreams & Nightmares Case, Operation Breakout Weapon Case, Operation Riptide Case, Spectrum 2 Case, Spectrum Case.
Can you trade up to a Butterfly Knife in CS2?
Yes. Trade up 5 Covert skins from one of those cases’ collections and you receive a random knife or glove from that case. In the Operation Breakout Weapon Case pool every Butterfly Knife finish has a 7.69% chance and any Butterfly Knife has a 100% chance.
What is the cheapest Butterfly Knife in CS2?
The cheapest finish is usually a Battle-Scarred or Well-Worn knife from the table above – the “Lowest price” column uses Steam Market prices refreshed every hour.
How is a trade up Butterfly Knife’s float decided?
From your inputs: float = min + average normalised input float × (max − min) of the finish you receive. Use low-float Covert inputs for a Factory New result.