Calculated fields let you perform automatic calculations inside your form — think pricing calculators, quiz score totals, or lead scoring, all based on respondents' answers. You can use simple numeric and text operations, or write full formula expressions for more advanced logic.

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Calculated fields are available for free to all Tally users.

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Calculated fields examples

Calculated fields enable you to dynamically calculate values based on respondents' answers. Here are some common use cases for calculated fields:

• Pricing calculators: Build a checkout form where the total updates live as respondents choose products, quantities, or add-ons. Feed the result directly into a payment block.
• Quiz scoring: Add points per correct answer and show respondents their final score on a thank you page. See our guide to building scored quizzes.
• Personality and category quizzes: Tally up answers across categories and route respondents to the matching result page. See our personality quiz guide.
• Lead qualification: Assign a score or status label ("Hot lead," "Nurture") based on the answers someone gives, and sync it to your CRM via an integration.
• Name and text concatenation: Combine first name and last name into a single "Full name" field, or build a custom reference string from multiple inputs.
• Conditional redirects that use a calculated field with conditional logic to redirect respondents to different pages based on their responses.

Create a calculated field

Insert a calculated field in your form by typing /calculated field. In most cases, it’s best to add calculated fields on top of the form.