What it does
Calculated Fields Form creates interactive WordPress calculators, estimates and forms. Its free Basic edition supports calculations and submissions, while paid editions add uploads, exports, data connections and more payment options.
Install the plugin through your WordPress administrator account. Add quantity and unit-price inputs, then a calculated field. If those inputs are fieldname1 and fieldname2, the equation fieldname1*fieldname2 multiplies them. PREC(fieldname1*fieldname2,2) formats the result to two decimal places. This is an example calculation to adapt and check with your own values.
Publish the saved form using its shortcode or a supported page-builder block. Visitor labels do not replace the field identifiers used in equations.
Editions and one-time prices
| Edition | Current offer in EUR | Main additions |
|---|---|---|
| Basic | Free | Calculations, conditional rules, multipage forms, stored submissions, email notifications and one-time Stripe checkout |
| Professional | 29.99 once | File uploads, entry editing, CSV exports, PayPal and recurring Stripe payments |
| Developer | 59.99 once | External data connections, advanced operations and integrations such as WooCommerce |
| Platinum | 89.99 once | PDF generation, email verification and additional services and payment gateways |
Paid purchases allow continued use and lifetime plugin updates; technical support is limited to 60 days. Each higher edition includes the preceding edition's tools.
Strengths
- Calculated fields use named inputs in arithmetic and conditional expressions.
- Decimal-formatting functions support consistent displayed results.
Watch out for
- Technical support for paid editions lasts 60 days.
Best for
- WordPress owners creating quantity-based estimates or interactive calculators
Sources
- CFF - Download (Oct 27, 2026)
- CFF - Calculated Fields Form (Oct 27, 2026)
- CFF - Documentation (Oct 27, 2026)