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A bulb spacing calculator determines how many flower bulbs are needed to fill a bed, based on area and recommended spacing. Proper spacing allows bulbs to multiply and ensures a full, even display.

Formel

Spacing = 2–3× bulb diameter apart | Depth = 2–3× bulb height | Density: 25–100 bulbs/m² depending on type

Trinn-for-trinn guide

1Bulbs per row = Area width / Spacing
2Number of rows = Area length / Spacing
3Total bulbs = Bulbs per row × Rows
4Add 10% extra for gaps and irregular edges

Løste eksempler

Inndata

2m × 1m bed, 15cm spacing

Resultat

(200/15) × (100/15) ≈ 13 × 6 = 78 bulbs (+ 8 spare = 86 total)

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What is Bulb Spacing?

A bulb spacing calculator determines how many flower bulbs are needed to fill a bed, based on area and recommended spacing. Proper spacing allows bulbs to multiply and ensures a full, even display

How accurate is the Bulb Spacing calculator?

The calculator uses the standard published formula for bulb spacing. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Bulb Spacing calculator use?

This calculator works with pounds, inches, percentages. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Bulb Spacing calculator use?

The core formula is: Bulbs per row = Area width / Spacing. Each step in the calculation is shown so you can verify the result manually.

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