Calculators are a useful tool for performing complex mathematical formulas quickly and accurately. However, sometimes these formulas can become quite lengthy and difficult to manage. In these cases, it can be helpful to use the result of one calculator within another calculator's formula to simplify the process.

Start by opening your calculator formula builder, you can do this on any calculator that you have on your funnel. Alternatively, you can access global formulas by clicking on the cogwheel icon in the upper right corner of the editor, and navigating to the Global Formulas section.

Then open the "Global Formulas" dropdown and hit the "+ Add Global Formula" button.

Doing this will open an additional formula builder window. This new window is where you can build your own global formula, and it will be located above your calculator's formula builder window, so you'll have both formulas visible at the same time.

The next step will be to name your formula (we always recommend naming them in order to keep things tidy, especially if you plan to have more than one), and create the formula itself.

Global formulas are created in the same way as normal formulas. This means that you can use all available operators and functions to create your global formula, which can be made as simple or as complex as you need it to be.

Once you have created your global formula, you can use it inside another calculator's formula by simply adding it in, just like you would do with questions and hidden fields.

Global formulas allow you to use the result of a formula, inside a calculator's formula. Since you can add as many global formulas to your formula as necessary, this makes complex formulas much easier to manage.

Your global formulas will be available inside the funnel where they were created, so any calculator that you use in that funnel will have these formulas available to pick from. Global calculators are not available across funnels however, they're limited to the funnel they were created in.

You can display a global formula's live result as a sticky card that stays on screen while a visitor moves through your funnel. Use it for a running value people should always see, such as a shopping cart total that updates page to page during a checkout.

To turn this on, open the global formula and switch on Show sticky on all pages. Use Start on page to pick the first page the card appears on, so it shows from that page onward.
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​For how calculators work and how to set one up, see Using Calculators.

The remaining options set how the card looks:

If you want to test your calculator's formula after you added your global formulas in, then you can do so with our formula builder test mode. Read more about it here.

If you have any questions about global formulas, get in touch with our support team.

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