Guides

The numbers behind the tools.

Every calculator here makes assumptions. These guides explain them, show the working, and point at the published research rather than asking you to take our word for it.

Pasture · 23 September 2026 How many acres per horse? Why the answer moves. Two acres is the usual answer. What actually sets the number is how much a horse eats, what your acre grows, and how much of it gets trampled before it reaches a horse.

What is coming

Guides are published roughly weekly, and each one is tied to a calculator so you can move between the reasoning and the arithmetic. Planned next: choosing arena footing material, what an arena actually costs to build, and how much hay a horse needs through a winter.

If there is a number you keep working out on the back of an envelope, tell us and it will go near the front of the queue.