Garden & Farming Tools

Free browser-based gardening calculators and planners. Calculate soil, plan planting schedules, check companion plants and more — 100% private.

14 Tools

Calculate how much soil you need for any raised bed shape. Get cubic feet, yards, bag counts and cost estimates.

Find planting dates for 20+ vegetables and herbs by USDA zone. See when to start seeds, transplant and direct sow.

Calculate how many plants fit in your garden bed with row, square foot grid and triangular layouts. Visual grid preview.

Check which plants grow well together in your garden. Find good and bad companion pairs with growing tips and a full compatibility matrix.

Calculate how much mulch, compost, topsoil or gravel you need. Get cubic yards, bag counts, weight and cost estimates.

Calculate how much money you save growing your own vegetables vs buying from the grocery store. See yield, ROI and break-even.

Calculate emitters, drip line length, run time and water usage for your garden. Compare drip vs sprinkler water savings.

Calculate how much fertilizer your garden needs by crop type and area. See N-P-K delivery, bag counts and soil nutrient deficit analysis.

Generate a custom weekly watering schedule for your plants. Adjust for soil type, sun, season and planting method.

Calculate when to start seeds indoors, transplant and direct sow for 20+ crops based on your frost date or USDA zone.

Calculate how big your garden should be based on family size, goals and crops. Get sq ft, bed count and harvest estimates.

Calculate water savings, cost savings and materials needed when converting lawn to garden. Get payback period and environmental impact.

Estimate when crops will be ready to harvest based on planting date and method. Track multiple crops on a timeline sorted by earliest harvest.

Balance your compost pile by calculating the carbon-to-nitrogen ratio. Add greens and browns, get ratio analysis and fix recommendations.

Find your USDA plant hardiness zone by temperature or city. See frost dates, growing season length and recommended plants for your area.