Vegetable Yield Calculator

Plan your garden and estimate crop yields. Choose your garden dimensions and crop type to see how many plants to grow and expected harvest. This calculator serves as both a yield predictor and small farm planner with spacing recommendations.

YIELD CALCULATION: 1. Garden Area = Length × Width 2. Plant Spacing: - Standard: Crop-specific inches - Intensive: 75% of standard - Raised Bed: 80% of standard 3. Plants per Area: - Grid Method: (Width ÷ Spacing) × (Length ÷ Spacing) - Intensive: Area × Plants per sq ft 4. Expected Yield = Total Plants × Yield per Plant YIELD ESTIMATES (per plant, season): - Tomatoes: 10 lbs - Peppers: 6 lbs - Cucumbers: 8 lbs - Zucchini: 10 lbs - Lettuce: 0.5 lbs (multiple harvests) - Carrots: 0.25 lbs
Example: 20' × 10' garden, planting tomatoes with grid method 1. Garden Area = 20 × 10 = 200 sq ft 2. Tomato spacing = 24" = 2 ft 3. Rows = 10 ÷ 2 = 5 rows 4. Plants per row = 20 ÷ 2 = 10 plants 5. Total plants = 5 × 10 = 50 plants 6. Expected yield = 50 × 10 = 500 lbs At 24" spacing, you can plant 50 tomato plants and expect approximately 500 pounds of tomatoes from your 200 sq ft garden.

How do I calculate vegetable yield for my garden?

Vegetable yield depends on: garden size, plant spacing, crop type, and growing conditions. Our calculator uses recommended spacing for each vegetable to determine how many plants fit, then multiplies by typical yield per plant. Actual yields vary based on weather, soil quality, pest pressure, and your growing season.

What spacing should I use for my vegetables?

Spacing varies by crop: Tomatoes need 24" (2 feet), Peppers 18", Cucumbers 36", Leafy greens 6-10", Root vegetables 2-6". Intensive or square-foot gardening uses 75% of traditional spacing. Raised beds work well at 80% of standard spacing. Proper spacing ensures adequate airflow and prevents disease.

How much will my tomato plants produce?

A healthy tomato plant produces 10-15 lbs per season (indeterminate types can produce 20+ lbs). With proper care, a 100 sq ft garden with 20 tomato plants could yield 200+ lbs. Cherry tomatoes often yield more but individual fruits are smaller. Heirloom varieties may yield slightly less.

What's the difference between grid and intensive planting?

Grid/traditional planting uses wide rows with walking paths (typically 30-40% of space is paths). Intensive or square-foot gardening eliminates paths and spaces plants in a grid pattern, fitting 15-30% more plants in the same area. Intensive works best for fertile, well-irrigated beds and works well for compact crops.

Why use raised beds?

Raised beds warm faster in spring, drain better, and allow earlier planting. They're ideal for intensive planting since you don't need to walk in the growing area. Our calculator uses slightly tighter spacing (80% of standard) for raised beds since you're controlling the soil quality and irrigation more precisely.

How accurate are these yield estimates?

Estimates assume good growing conditions: full sun (6-8 hours), adequate water (1-2" per week), fertile soil, and a frost-free growing season. Yields can vary 50% or more based on variety, weather, pests, and your gardening experience. These are realistic targets for a well-maintained home garden.

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