In the WooCommerce Product Add-Ons Ultimate plugin name your price fields allow you to add number input fields to your WooCommerce product so that the user can define their own price. There’s a demo product here.
To add a name your price field, just choose ‘Name Your Price’ from the ‘Field Type’ dropdown list.
When you select Name Your Price, you’ll see an additional ‘Number’ tab appear on the settings. Click on this for some settings that are specific to this field type.
Min value
Enter the minimum permitted value that the user can enter.
Max value
Enter the maximum permitted value that the user can enter.
Decimal places
Specify how many decimal places for the input field on the front end.
Multiply price
Check this field if you would like to multiply the value of the field by the field price. You can set the field price on the ‘Pricing’ tab.