Calculators, tables and datasets for Project Zomboid: healing times, repair odds, crafting gates and other numbers the game never shows, checked against primary sources.https://knoxcalc.com/enhttps://knoxcalc.com/posts/project-zomboid-chickens-not-laying-eggs/https://knoxcalc.com/posts/project-zomboid-chickens-not-laying-eggs/No eggs usually means a full nest box, no hutch, an immature bird, no water, or a dirty hutch. Check them in this order before assuming a bug.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsurvivalhttps://knoxcalc.com/posts/project-zomboid-electricity-shutoff-hours-or-days/https://knoxcalc.com/posts/project-zomboid-electricity-shutoff-hours-or-days/Water shuts off day 0-30 and power day 14-30 on default Apocalypse, both day-based. Convert your own modifier into a calendar date, not a guaranteed prediction.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsandboxtroubleshootinghttps://knoxcalc.com/posts/pz-b42-generator-fuel-how-long/https://knoxcalc.com/posts/pz-b42-generator-fuel-how-long/A generator idling with nothing plugged in burns 0.002 L/h. Add a fridge, a TV and six lamps and pzwiki's own math gives 18.7 days from a 10-liter tank.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidcraftingbuildingsurvivalhttps://knoxcalc.com/posts/pz-b42-why-cant-i-craft-this-recipe/https://knoxcalc.com/posts/pz-b42-why-cant-i-craft-this-recipe/What Build 42's 'requires a surface' message actually means, plus the five crafting gates hidden behind one greyed-out recipe and the order to check them in.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidcraftinghttps://knoxcalc.com/posts/pz-b42-workstation-recipe-index/https://knoxcalc.com/posts/pz-b42-workstation-recipe-index/A version-stamped reverse index of Build 42 pottery wheel, kiln and grindstone recipes listed in the cited pages, sorted by skill, research and magazine gates.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidcraftinghttps://knoxcalc.com/posts/pz-basics-first-week-order/https://knoxcalc.com/posts/pz-basics-first-week-order/Two hidden clocks decide your first week in Build 42: the water shutoff and the power shutoff. Order your first seven days around them instead of around loot.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidbeginner-guidesurvivalhttps://knoxcalc.com/posts/pz-basics-occupation-point-cost/https://knoxcalc.com/posts/pz-basics-occupation-point-cost/Every Build 42 occupation with the trait points it leaves you, its starting skills, and the XP multiplier that makes level 1 worth four of level 0.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidbeginner-guidecharacter-creationhttps://knoxcalc.com/posts/pz-basics-trait-point-efficiency/https://knoxcalc.com/posts/pz-basics-trait-point-efficiency/Eight points, forty-odd traits, no in-game explanation of what any of them cost. Here is what each buys per point, and which negatives are near free.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidbeginner-guidecharacter-creationhttps://knoxcalc.com/posts/pz-basics-zombie-detection-matrix/https://knoxcalc.com/posts/pz-basics-zombie-detection-matrix/Sight and sound are two separate systems in Build 42 with two separate sets of modifiers. Here is which of your choices moves which number, and by how much.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidbeginner-guidecombatzombieshttps://knoxcalc.com/posts/pz-broken-leg-field-survival/https://knoxcalc.com/posts/pz-broken-leg-field-survival/A fracture far from base is an ordering problem, not a knowledge problem. Build a triage sequence from your bleeding, the crowd, the light and the distance.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsurvivalhttps://knoxcalc.com/posts/pz-corpse-sickness-base-cleanup/https://knoxcalc.com/posts/pz-corpse-sickness-base-cleanup/Where the bodies are matters more than how many. Weigh your own pile, get an ordered clearance plan, and stop the doorway heap from rebuilding itself.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsurvivalbuildinghttps://knoxcalc.com/posts/pz-fracture-healing-time/https://knoxcalc.com/posts/pz-fracture-healing-time/A splint heals fractures roughly 10x faster, First Aid level multiplies it, comfrey halves what remains. No absolute day count exists, only relative math.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsurvivalhttps://knoxcalc.com/posts/pz-knox-infection-odds-by-wound/https://knoxcalc.com/posts/pz-knox-infection-odds-by-wound/A zombie bite is 100% lethal. A laceration infects 25% of the time, a scratch 7% — the exact numbers pzwiki lists, plus what changes them and what doesn't.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsurvivalcombathttps://knoxcalc.com/posts/pz-why-am-i-dying-cause-finder/https://knoxcalc.com/posts/pz-why-am-i-dying-cause-finder/Five different things produce the same queasy moodle in Build 42. Feed in what you can actually see and get the one test that separates them.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsurvivalhttps://knoxcalc.com/posts/pz-zombie-population-sandbox-math/https://knoxcalc.com/posts/pz-zombie-population-sandbox-math/Three sandbox multipliers stack before the peak-day ramp even starts, and the game never shows you the product. Work out the density you actually set.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsandboxtroubleshootingzombieshttps://knoxcalc.com/posts/pz2-animal-butchering-gates/https://knoxcalc.com/posts/pz2-animal-butchering-gates/The wiki says a cut is possible and the game refuses. Find which of three gates - tool, skill or animal size - is blocking the yield.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidsurvivalcraftinghttps://knoxcalc.com/posts/pz2-clay-pottery-trip-planner/https://knoxcalc.com/posts/pz2-clay-pottery-trip-planner/Where to find clay moves with the map. How many trips it takes does not. Plug in your own dig rate and carry weight and get a real trip count before you start.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidcraftinghttps://knoxcalc.com/posts/pz2-welding-skill-grind-calculator/https://knoxcalc.com/posts/pz2-welding-skill-grind-calculator/Welding levels don't cost the same as each other. Plug in your own weld speed and scrap use to see which level is actually eating your grind time.Mon, 26 Oct 2026 00:00:00 GMTProject Zomboidcraftingprogression