All calculators
How Many Chickens Do I Need?
Enter how many eggs your household eats and get flock size, coop and run square footage, nesting boxes and monthly feed cost.
How Many Tomato Plants for a Year of Canning?
Turn your jars-per-week habit into an exact plant count, garden footprint and number of canner loads.
Compost C:N Ratio Calculator
Mix what you actually have on hand and see whether your pile will heat up — or turn into a slimy, smelly mess.
One Year Food Storage Calculator
Pounds per category, buckets to fill, floor space and cost for however many months you want stored — printable.
Chicken Coop Size Calculator
Buildable coop and run dimensions adjusted for breed size, outdoor access and climate — plus roosts, vents and bedding.
What Size Turkey Do I Need?
Pounds of bird for your guest count, how many days ahead to start thawing and how long to roast — or plan the poults, feed and weeks to raise your own.
How Many Cords of Firewood Do I Need?
Cords for your square footage, climate and stove — with nine species by heat value, what unseasoned wood costs you, and the face cord trap.
Root Cellar Storage Calculator
Pounds per crop, storage volume, shelf space and floor area — plus a warning when the crops you picked need conditions one room cannot hold.
When to Plant a Fall Garden
The last day you can sow each crop, counted back from your frost date — with the fall factor, and the day-length limit that stops growth before frost does.
What Size Freezer Do I Need?
Cubic feet for the meat and produce you actually put up, the shelving penalty that makes an upright hold a fifth less, and what it costs to run.
How Much Garlic to Plant
Cloves to plant, pounds of seed to order and bed space for a year of garlic — including the seed reserve that eats a quarter of a hardneck harvest.