How The TTK Calculator Works
The calculator starts from the most-quoted numbers on any weapon's wiki entry: damage per bullet, fire rate in rounds per minute (RPM), and headshot multiplier. From those it derives two derived quantities: bullets to kill (ceiling of target HP divided by effective per-bullet damage) and time to kill ((bullets-1) × milliseconds between shots). A subtle but important detail: TTK is the time between your first bullet connecting and the target dying, not the time for all bullets to travel. A weapon that kills in one headshot has a TTK of 0 ms, because the first shot already landed. Armor is modeled as a flat percentage damage reduction applied before the HP calculation — accurate enough for the common "unarmored vs helmet" comparison in CS2, Valorant, and Apex.
TTK Is Not Everything (But It's Close)
In competitive shooter analysis, TTK is the single strongest predictor of a weapon's dominance in duel situations. But two weapons with identical TTK can play very differently because of fire-rate distribution. A weapon with a 200 ms TTK from 2 bullets at 300 RPM plays safer than one with a 200 ms TTK from 10 bullets at 1500 RPM — the slower gun gives you more margin to reposition between shots, the faster gun demands flawless tracking for the full 200 ms. Our calculator exposes both numbers (BTK and fire interval) so you can compare apples to apples. For a true head-to-head, match target HP, armor, and range multiplier, then put the two weapons side by side.
Why Headshot TTK Dominates Balance Discussions
In every modern shooter, high-damage weapons are balanced around body TTK (which keeps duels from being instant) but skill-expressed through headshot TTK. The Valorant Vandal, for example, has a body TTK around 230 ms but a headshot TTK of 0 ms — one-shot potential rewards mechanical skill without trivializing the game for flickers. The CS2 AK-47 is similar: 3-body (200 ms) but 1-head (0 ms) against no-helmet. This asymmetry is why the calculator shows body and head columns side by side — the gap between them is where player skill translates into wins.
Network Latency And Peeker's Advantage
Raw TTK only matters if you and your opponent see each other at the same instant. On most servers, the player who initiates a peek sees their opponent 50-80 ms before the opponent sees them — the combined cost of client-side prediction, ping, and server tick interpolation. If your TTK on a given weapon is under that peeker's advantage window, you will win trades almost for free. If your TTK is longer than the window, you need first-shot accuracy to compensate. This is why the AK-47 (200 ms body TTK) is harder to win trades with than the SG-553 (150 ms 2-head-1-body TTK with scope), and why game designers work so hard to tune tick rate and interpolation to minimize this asymmetry.
