Plan your vegetable garden with our free calculator. Calculate plant spacing, soil needs, and harvest estimates.
How to use this calculator
1Enter garden dimensions (length and width)
2Select what you want to grow
3Choose garden type (in-ground, raised bed, containers)
4View recommended plant spacing and estimated harvest
Planning Your Vegetable Garden
A well-planned garden maximizes yield while minimizing work. Use this calculator to determine the right spacing and soil needs for your available space.
Garden Types
In-Ground: Traditional row gardening, good for large spaces
Proper spacing ensures plants get enough light, nutrients, and air circulation. Overcrowding leads to disease and reduced yields.
Soil Preparation
Start with a soil test. Most vegetables prefer slightly acidic soil (pH 6.0-7.0). Add compost to improve soil structure and nutrient content.
Common questions
How much space do vegetables need?
Different vegetables have different spacing requirements. Tomatoes need 24-36 inches apart, lettuce 6-12 inches, peppers 18-24 inches. Use our calculator for specific spacing.
How much soil do I need for a raised bed?
For a 4x8 foot raised bed at 12 inches deep, you need about 26 cubic feet or roughly 13 bags of 2 cubic feet each.
How many plants per square foot?
In intensive gardening, you can fit 1 tomato, 4 lettuce, 9 spinach, or 16 carrots per square foot, depending on plant size.
When should I start my garden?
This depends on your climate zone. Most warm-season crops are planted after the last frost date. Check your local frost dates for best timing.