Seed Spacing and Yield Calculatorv1.0.0

Determine how many plants fit in your garden bed based on recommended spacing for each vegetable. Select a vegetable, enter your bed dimensions, and the tool computes the number of rows, plants per row, total plant count, and estimated harvest yield. All spacing data comes from university agricultural extension recommendations for intensive raised bed gardening.

• Select a vegetable from the Vegetable dropdown. The calculator includes over 30 common garden vegetables with pre-loaded spacing data.
• Enter your Bed Width and Bed Length in feet or meters. The tool accepts decimals (3.5), fractions (7/2), and mixed numbers (3 1/2).
• Choose your preferred Unit System using the Imperial or Metric radio buttons. Imperial uses feet, inches, and pounds. Metric uses meters, centimeters, and kilograms.
• Enable succession planting to see how many plantings you can fit across a growing season. Succession planting means sowing the same crop in staggered batches a few weeks apart so the harvest is spread out over time instead of arriving all at once. Adjust the Succession interval field to set weeks between each planting.
• Click Calculate or simply type values to trigger automatic calculation after a brief delay.
• Open Settings to enable step-by-step formula display or override the default yield per plant with a custom value.
• Click Reset to restore all fields to their default values and clear saved settings.

The core formulas are: Number of Rows = floor(Bed Width / Row Spacing), Plants Per Row = floor(Bed Length / Plant Spacing), Total Plants = Rows x Plants Per Row, and Estimated Yield = Total Plants x Yield Per Plant. Succession planting divides the available growing window by the interval to determine how many rounds of planting you can complete in one season.

Plan your garden layout with accurate plant counts and harvest estimates. Whether you are growing food for a family, managing a community garden, or experimenting with intensive planting methods, this tool provides the numbers you need to make informed decisions about bed size and crop selection.

• Home Gardeners: Enter your raised bed dimensions and see exactly how many tomato, lettuce, or pepper plants will fit. Compare yield estimates across vegetables to decide what to grow this season.
• Square Foot Gardening: Use the calculator to verify plant counts for intensive spacing methods. Enter a 4 x 4 foot bed and compare results for different vegetables to maximize variety in a small space.
• Succession Planting: Enable the succession feature to stagger plantings of fast-maturing crops like radishes or lettuce every two to three weeks. See the total seasonal yield from multiple harvests.
• Community Gardens: Plot managers can estimate total production across multiple beds and plan crop assignments for participants based on expected yield per bed.
• Market Gardeners: Calculate plant counts and expected pounds of produce per bed to estimate revenue potential for farmers market sales or CSA box programs.
• Education: Teachers and agricultural extension educators can use the tool to demonstrate spacing principles and yield estimation in classroom or workshop settings.
• Seed Purchasing: Determine how many seeds or transplants you need to order by calculating total plant count across all your beds before the growing season begins.