Umbrella Coverage Calculator

Umbrella coverage depends on the canopy diameter. A person typically needs about 18–22 inches (45–55 cm) of shoulder width coverage.

General guidelines:

• 1 person: 36–42 inches (91–107 cm) diameter
• 2 people: 48–54 inches (122–137 cm) diameter
• 3 people: 60–68 inches (152–173 cm) diameter — golf umbrella territory

Umbrella types by size:

• Compact/Travel: 36–42 in (91–107 cm)
• Standard: 44–48 in (112–122 cm)
• Large/Golf: 54–68 in (137–173 cm)

Formula approximation:

Recommended diameter ≈ 22 inches × number of people + 10 inches buffer

Tip: Wind and rain angle affect real-world coverage. In heavy wind, actual coverage can drop by 30–50%, so sizing up is smart.