Garden Calculators
Five calculators for the five jobs every gardener does. Type your numbers, get the answer in seconds — every tool shows its working, and nothing needs an account.
Raised Bed Soil Calculator
Bed size and depth in — cubic feet, cubic yards, 2 cu ft bag count, the 60/30/10 mix recipe and a cost estimate out.
Seed Starting Calendar Generator
Enter your ZIP code — get a printable schedule for 20 common crops: indoor sow date, transplant date, hardening-off window and expected harvest window.
Mulch Calculator
Beds, paths and tree rings in — cubic yards, bag count, cost, and the point where bulk delivery beats bags.
Compost Mix Balancer
Pick real materials — kitchen scraps, grass, leaves, straw — and get a live greens/browns carbon-to-nitrogen ratio plus what to add to fix it. Target 25–30:1.
Garden Watering Scheduler
Crop, soil type and bed size in — weekly gallons and a simple schedule: deep watering 2–3× per week, not daily sprinkles.
How the tools work
Each calculator runs entirely in your browser — your numbers are never sent or stored. Results use standard geometry and US cooperative extension guidelines, and every tool page prints its formula and assumptions so you can check the working yourself.