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Zombie survival time calculator

When the outbreak hits, how long would you last? Choose your location, shelter, weapon, fitness, group and supplies, and this apocalyptic calculator estimates your survival time in days and weeks — and awards you a survivor rank, from zombie chow to wasteland legend.

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The Zombie survival time calculator turns Location, Shelter, Weapons, Fitness level, Group size, Supplies into Survival time (days), Survival time (weeks), Survivor rank, instantly and for free. For instance, with Location = Rural / countryside, Shelter = Out in the open, Weapons = None, Fitness level = Couch potato, Group size = Alone and Supplies = None it returns Survival time (days) = 45, Survival time (weeks) = 6.4 and Survivor rank = survivor.

How to use it

  1. Enter your values: Location, Shelter, Weapons, Fitness level, Group size, Supplies.
  2. Read the result instantly: Survival time (days), Survival time (weeks), Survivor rank.

Frequently asked questions

How does the Zombie survival time calculator work?

It takes Location, Shelter, Weapons, Fitness level, Group size and Supplies and derives Survival time (days), Survival time (weeks) and Survivor rank from them. The calculation is live as you type, so the result updates on every change.

Which values does the calculator ask for?

6 values: Location, Shelter, Weapons, Fitness level, Group size and Supplies. Nothing else is required — no account, no file upload.

What does a typical calculation look like?

With Location = Rural / countryside, Shelter = Out in the open, Weapons = None, Fitness level = Couch potato, Group size = Alone and Supplies = None, the calculator returns Survival time (days) = 45, Survival time (weeks) = 6.4 and Survivor rank = survivor. Those figures come from running this exact tool, so you can reproduce them by entering the same values.

How much does the result change with different inputs?

It moves a lot. Using Location = Suburbs, Shelter = Regular house, Weapons = Melee (bat, machete), Fitness level = Average, Group size = Pair and Supplies = Minimal instead, Survival time (days) goes from 45 to 157 — which is why it is worth testing a few scenarios rather than trusting a single figure.

Which “Location” option should I choose?

You can pick between « Rural / countryside », « Suburbs », « City » and « Downtown core ». Each one changes what the calculator works out, so switch and compare — the default is « Rural / countryside ».

When would I actually use this?

Making something to print: a puzzle for a classroom, a grid for a rainy afternoon, or a set of rounds for a quiz night.

What is the most common mistake?

Printing before checking the solution. A grid is generated fresh each time, so the answer key belongs to that exact grid and to no other — reloading the page gives a different puzzle.

How accurate is it, and what are the limits?

Purely for fun — a made-up model, not survival advice. There is no real zombie apocalypse (probably).

What is the difference between the Zombie survival time calculator and the DPS calculator (damage per second)?

This one returns Survival time (days) and Survival time (weeks); the DPS calculator (damage per second) returns Burst DPS and Effective DPS (with crit). That is the whole difference — open the one whose figure you need.

Where do the figures come from, and how current are they?

Puzzles are generated and, where it applies, verified to have exactly one solution before being shown. Word lists are written per language, so no grid depends on translating an English one.

Further reading

All guides →
How-toHow to Keep the Same Mouse Sensitivity Across GamesEvery game uses a different sensitivity scale. Convert with the yaw ratio, verify with centimetres per 360 degrees, and keep the muscle memory you spent months building.ExplainerTwo Brown-Eyed Parents, and the Model That Says 2.7 % BlueThe classic two-gene predictor is arithmetic, not a draw — and its one confident answer, blue × blue giving 100 % blue, is exactly where real genetics disagrees with it.ExplainerThe Chinese Gender Chart Says Boy in 57 % of Its Cells336 cells, 192 of them boy and 144 girl. The chart is not even a fair coin, and the real ratio at birth is about 51 % boys — which is the whole measurement this article has to offer.ExplainerThe Advertised Rate Describes Almost None of What HappensWith a 0.6 % base rate, a soft pity at 74 and a hard pity at 90, the effective chance climbs from 0.6 % to 36.6 % by pull 80 and 90.6 % by pull 89. Without pity, ninety pulls would give 41.8 %.ExplainerA 1 % Drop Rate Does Not Mean One Hundred RunsAt 1 %, a hundred attempts give you 63.4 % — not certainty. Ninety per cent takes 230 attempts and ninety-nine takes 459, and more than a third of players are still empty-handed at a hundred.ExplainerSix Rebounds Can Beat Ten, and the Difference Is the DenominatorTen rebounds in 32 minutes of a game with 82 boards is 18.3 %. Six rebounds in 18 minutes of the same game is 19.5 % — a better rate from a smaller number.