26
calorie crops modelled across 8 climate zones
26
livestock and wild food sources with honest net calorie economics
1
printable seed plan -- exactly what to buy and how much to sow
How it works -- 7 steps
1
Climate Zone
Pick your growing zone -- from tropical to alpine. This filters which crops are viable and adjusts yields and storage durations.
2
Your Group
Count your adults, teenagers and children. The calculator scales calorie needs by age and gender.
3
Activity Level
Growing food is physical work. The tool warns you if your stated activity level will underestimate real-world calorie burn.
4
Food Sources
Add kept livestock, wild-caught food and other sources. Feed costs are subtracted from your crop plan honestly.
5
Crop Selection
Choose which crops you want to grow. Only crops viable in your zone are shown, with yield, storage and loss data pre-loaded.
6
Calorie Split
Decide what percentage of calories each crop provides. Set a surplus buffer against bad years.
7
Your Plan
See exactly how many seeds to buy, how much land you need, and your weeks of food security. Print and save your plan.
What this tool is -- and isn't
This calculator gives you a realistic starting point, not a guarantee. Real growing involves weather, pests, disease, soil condition, water availability, and years of accumulated skill. The numbers here use honest loss rates -- germination failures, pest damage and wind losses are all accounted for -- but no calculator replaces experience.
Use this as a map, not a contract. The most valuable thing it can do is show you the scale of what's needed -- because most people who've never grown food seriously underestimate it by a factor of ten.