As in a chart, you can activate vertical and horizontal cursors on Options Calculator.
To use a vertical or horizontal cursor:
1. Click the horizontal (vertical) scale to activate the vertical (horizontal) cursor.
The cursor value box is gray.
2. Drag the mouse to position the cursor at the desired spot.
3. Click to anchor the cursor at the desired point.
The cursor value box turns brown.
To remove a vertical or horizontal cursor:
1. Click an anchored cursor value box to activate the cursor.
2. Right-click the active cursor value box.