# Add a new formula

- Open a job in the Manage Estimates screen.
- From any tab, click Calculator .
- Click Formulas.
- In the Convert from Units field, click to select the unit that you want to convert from in the new formula.
- Verify that the formula you want to create does not appear in the list of formulas.
- Click New.
- In the Name field, enter a descriptive name for the formula. For example, LF to m.
- In the Description field, enter a detailed description of the formula. For example, Linear Feet (LF) to meters (m).
- In the Answer area, enter a description for the result in the Description field.
- In the Unit field, enter the unit for the result.
- In the Formula field, enter the mathematical formula to generate the result.
- When you finish entering the formula, click Test to test the formula with a working total value of 10.10.
- Click OK.
- Once you have finished testing the formula, click OK. The new formula is added to the list of formulas for the unit.
- Click Cancel.
- Click Cancel.