Enter the mainsail hoist (ft) and the mainsail foot (ft) into the Sail Area Calculator. The calculator will evaluate the Sail Area.

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## Sail Area Formula

The following two example problems outline the steps and information needed to calculate the Sail Area.

SA = H * F / 2

- Where SA is the Sail Area (ft^2)
- H is the mainsail hoist (ft)
- F is the mainsail foot (ft)

To calculate the sail area, multiply the mainsail hoist by the foot, then divide by 2.

## How to Calculate Sail Area?

The following example problems outline how to calculate Sail Area.

Example Problem #1:

- First, determine the mainsail hoist (ft).
- The mainsail hoist (ft) is given as: 40.

- Next, determine the mainsail foot (ft).
- The mainsail foot (ft) is provided as: 10.

- Finally, calculate the Sail Area using the equation above:

SA = H * F / 2

The values provided above are inserted into the equation below and computed.

SA = 40 * 10 / 2 = 200.00 (ft^2)

Example Problem #2:** **

For this problem, the variables required are provided below:

mainsail hoist (ft) = 60

mainsail foot (ft) = 30

Test your knowledge using the equation and check your answer with the calculator..

SA = H * F / 2** = ?**