Free mathhammer · 50,000 simulations · No account
Mathhammer the trade in front of you. Set the attacker's weapon and the defender's profile, then see expected damage, models destroyed, wipe chance, and the full kill spread.
Take it to the table
Import both units, check the range and firing lane, then run this same damage math without leaving the tabletop.
The attack sequence
Run the full attack sequence without trusting one hot or cold dice roll. The calculator resolves exact per-roll odds, then uses 50,000 simulated attack sequences for damage inflicted, models destroyed, and the kill distribution. You can see how often the unit whiffs, how often it wipes the target, and how swingy the trade really is.
Updated July 15, 2026 · Full 11th edition pass verified against simulation
Enter the weapon profile, model count, Toughness, wounds, save, and invulnerable save.
Model re-rolls, lethal and sustained hits, devastating wounds, mortal overflow, overwatch, and defender abilities.
See averages, estimated wipe chance, the simulated kill distribution, per-weapon output, and a suggested roll order.
Practice tools together
Inside 40 Carrot, the calculator connects to your imported army list. Pull both profiles from the selected models, check the range and position on the true-scale table, then save the answer with your printable unit cards and turn timeline.
Open the full tabletopQuick answers
Yes. It models the 11th edition attack sequence and common attacker and defender ability modifiers.
Yes. Use the calculator and save attacker or defender loadouts without paying.
No. The calculator runs here with no account or install. A free account adds the full tabletop.
Yes. You get the full kill distribution, including the chance of a whiff or a complete wipe.
Yes. Weapon output shows the hit threshold and expected hit count before wounds or saves enter the picture. Re-rolls, lethal hits, and sustained hits are included. To see how the trade holds up in position, set the matchup up on the 40K practice Virtual Tabletop.