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Cover image: Cost Calculator Builder vs Calculated Fields Form: which WordPress calculator plugin is the better lifetime deal?

Comparison

Cost Calculator Builder vs Calculated Fields Form: which WordPress calculator plugin is the better lifetime deal?

Cost Calculator Builder vs Calculated Fields Form is the choice between a quote builder that takes payments and a formula form that covers every site for a small one-time price. Both sell an official lifetime license: Cost Calculator Builder PRO costs $149 once for 1 site, Calculated Fields Form Professional costs €29.99 once for unlimited sites. This comparison shows prices, site limits, formulas, payments, PDF quotes and which plugin suits which project. Every price comes from the vendor’s own pricing page.

Links marked “Ad” are affiliate links. Your price stays the same.

Key takeaways

  • Price: Cost Calculator Builder PRO costs $149 once for 1 site, Calculated Fields Form Professional €29.99 once for unlimited sites. For many sites, Calculated Fields Form is far cheaper.
  • Payments: Cost Calculator Builder takes Stripe, PayPal, Razorpay and cash in the Pro license. Calculated Fields Form needs a higher edition for payment gateways and WooCommerce.
  • Quotes: Cost Calculator Builder sends PDF quotes and invoices by email. Calculated Fields Form stores messages with a CSV export.
  • Payback: Cost Calculator Builder PRO beats its annual plan of $59 after 31 months. Calculated Fields Form sells no annual plan at all.
  • Currency: StylemixThemes sells in US dollars, CodePeople in euros. We show both prices as the vendors list them, without conversion.

  • $149 Cost Calculator Builder PRO lifetime for 1 site

  • €29.99 Calculated Fields Form Professional lifetime for unlimited sites

  • 31 months until Cost Calculator Builder PRO lifetime beats the annual plan

  • 14 form plugins with a lifetime license in our catalog

Cost Calculator Builder vs Calculated Fields Form at a glance

The table puts both lifetime licenses side by side. Only StylemixThemes lists an annual plan, so a payback period exists for Cost Calculator Builder alone. The site limit is the second big difference: one site for the entry tier of one plugin, every site for the other.

  • Cost Calculator Builder PRO

    Lifetime price
    $149
    Sites
    1 site
    Annual plan
    $59
    Pays off after
    31 months
    Checked
    Oct 4, 2026

    LicenseOne-time payment for 1 site with lifetime updates and support. Lifetime tiers for 10 and unlimited sites are also available, and a yearly plan exists as well.

  • Calculated Fields Form Professional

    Lifetime price
    €29.99
    Sites
    Unlimited sites
    Annual plan
    not stated
    Pays off after
    not stated
    Checked
    Oct 4, 2026

    LicenseOne-time purchase that may be used on all your websites with access to all future updates; Developer and Platinum add payments, WooCommerce and add-ons.

Prices in the vendor’s currency, never converted. A price is only marked as the lowest when all products are sold in the same currency.

Want pros, cons and features in one view? Put both plugins side by side in the Arena comparison of Cost Calculator Builder PRO and Calculated Fields Form Professional. Every form plugin with a one-time price is listed under form plugins with a lifetime license.

Calculated Fields Form vs Cost Calculator Builder: the real difference

Both plugins turn a form into a calculator: visitors pick options or type values, and a total updates while they fill in the form. The difference lies in what happens after the result. Cost Calculator Builder by StylemixThemes is built for service businesses that want to sell from the calculator: the visitor sees a price, pays right away or receives a PDF quote by email.

Calculated Fields Form by CodePeople starts from the formula. Its formula editor turns any field into a result, from a price quote to a loan rate or a BMI value, and dependencies show or hide fields based on earlier answers. On the market since 2013, it has 40,000+ active installs on wordpress.org; Cost Calculator Builder has been around since 2019 with 20,000+.

A simple rule follows. If the calculator should end in a payment or a quote, look at Cost Calculator Builder. If you need flexible math on many sites for little money and handle payments elsewhere, look at Calculated Fields Form.

Cost Calculator Builder Pro pricing and lifetime tiers

Cost Calculator Builder Pro pricing starts at $149 once for 1 site, down from a list price of $229. It includes lifetime updates and lifetime support, and the refund window is 14 days. Larger lifetime tiers cover more sites: 1 site for $149, 10 sites for $299, unlimited sites for $749.

The Pro license adds payments with Stripe, PayPal, Razorpay and cash, conditional logic, PDF quotes and invoices, date and time pickers, file upload, repeater fields, geolocation, premium templates and a WooCommerce integration. It runs on top of the free Cost Calculator Builder plugin from wordpress.org, which you can test first. The same vendor also makes MasterStudy LMS Pro.

Cost Calculator Builder PRO: pros and cons

Pros

  • Lifetime updates and support from the date of purchase
  • Free version on wordpress.org to test the builder first
  • Collects payments without a separate form plugin

Cons

  • The crossed-out list price has no stated end date
  • Requires the free Cost Calculator Builder plugin as a base
  • Refunds only within 14 days
Cost Calculator Builder PROLicense terms, per the vendor

One-time payment for 1 site with lifetime updates and support. Lifetime tiers for 10 and unlimited sites are also available, and a yearly plan exists as well.

Vendor pricing page(affiliate link, opens in a new tab)

Calculated Fields Form Pro: one price for all your sites

The Professional edition, usually searched as Calculated Fields Form Pro, costs €29.99 once and may be used on unlimited sites. It includes all future updates. Its list price was €49.99. The vendor states no fixed refund window and refunds only for defects, so test the free version on wordpress.org before you buy.

Professional adds multi page forms, a messages section with CSV export and a built in captcha to the formula editor and dependencies of the free plugin. Payment gateways, WooCommerce and add-ons belong to the higher Developer and Platinum editions; our catalog tracks the Professional price only. The interface looks dated next to newer builders, which matters less once a form is set up.

Calculated Fields Form Professional: pros and cons

Pros

  • One license for all your websites
  • Lifetime updates for a very low price
  • Strong for calculators and price quotes

Cons

  • Dated interface
  • Payment gateways and WooCommerce need a higher edition
  • Refunds only for defects, no fixed refund window
Calculated Fields Form ProfessionalLicense terms, per the vendor

One-time purchase that may be used on all your websites with access to all future updates; Developer and Platinum add payments, WooCommerce and add-ons.

Vendor pricing page(opens in a new tab)

WordPress cost calculator plugin features compared

A WordPress cost calculator plugin needs three things: formulas, logic that adapts the form, and a way to act on the result. Here is how the two licenses in our catalog cover them.

  • Custom formulas

    Both. Calculated Fields Form uses a dedicated formula editor, Cost Calculator Builder sets formulas in its drag and drop builder.

  • Conditional logic

    Both. Cost Calculator Builder calls it conditional logic, Calculated Fields Form calls it dependencies.

  • Multi page forms

    Listed for Calculated Fields Form Professional.

  • Payments

    Stripe, PayPal, Razorpay and cash in Cost Calculator Builder Pro. Calculated Fields Form needs the Developer or Platinum edition.

  • PDF quotes and invoices

    Listed for Cost Calculator Builder Pro.

  • Entries

    Calculated Fields Form keeps messages with a CSV export. Cost Calculator Builder emails quotes and orders.

  • Special fields

    Date and time picker, file upload, repeater and geolocation in Cost Calculator Builder Pro.

  • Spam protection

    Built in captcha listed for Calculated Fields Form Professional.

WordPress quote calculator: payments, PDF quotes and orders

Cleaning companies, movers, printers and agencies often want a WordPress quote calculator that ends the conversation with a number and a next step. Cost Calculator Builder covers that path in one license: the visitor sees the total, pays online or in cash, or gets the quote as a PDF by email.

With Calculated Fields Form Professional, the result lands in the messages section, and you follow up yourself. That is enough for calculators that inform, such as a loan or savings calculator, and for quotes you confirm by hand. If you need a full form builder with payments for other forms too, our WordPress form builder comparison covers Fluent Forms Pro, and Paymattic Pro handles payment forms on its own.

WooCommerce price calculator

Need a WooCommerce price calculator that sets the product price from measurements or options? Cost Calculator Builder Pro includes a WooCommerce integration that prices products by calculator values. Calculated Fields Form only offers WooCommerce in a higher edition. For extra product options without a calculator, see WooCommerce Product Add-Ons Ultimate and our guide to WooCommerce plugins with a lifetime license.

WordPress calculator plugin lifetime: price and payback

A WordPress calculator plugin with a lifetime license pays off when you would otherwise renew every year. Cost Calculator Builder PRO lists an annual plan at $59, so the one-time price of $149 wins after 31 months.

Cost Calculator Builder PRO: lifetime price vs. annual plan

What the annual plan adds up to, measured against the one-time price.

Compared with the $59/year plan, it pays for itself after 31 months and saves $146 over five years.

Total cost of the annual plan compared with the lifetime price
PeriodAnnual plan, totalLifetimeDifference
After 1 year$59$149Lifetime costs $90 more
After 3 years$177$149You save $28
After 5 years$295$149You save $146

Calculated Fields Form Professional sells no annual plan, so there is nothing to pay back. At €29.99 for unlimited sites, it is one of the cheapest form plugins in our catalog. How to weigh one-time prices against renewals in general is explained in our guide to lifetime license vs subscription.

Calculator plugins for agencies and many client sites

Agencies compare the larger tiers. Cost Calculator Builder PRO sells 1 site for $149, 10 sites for $299, unlimited sites for $749, so unlimited sites cost a multiple of the entry price. Calculated Fields Form Professional has a single tier that already covers unlimited sites.

If you build calculators for many clients and do not need payments, that gap is hard to ignore. More tools that cover every client site with one payment are in our guide to lifetime plugins for unlimited sites.

Calculated Fields Form alternative and other options

Looking for a Calculated Fields Form alternative with payments and PDF quotes built in? Cost Calculator Builder is the closest one in our catalog. If calculations are only one part of larger forms, a form builder with calculation fields such as JetFormBuilder PRO can cover both jobs.

For bookings with a price per service and time slot, a booking plugin fits better than a calculator. Our WordPress booking plugin comparison shows the lifetime options.

Checklist: choosing between Cost Calculator Builder and Calculated Fields Form

  1. Decide what follows the resultPayment or PDF quote: Cost Calculator Builder. A message you answer yourself: either plugin.
  2. Count your sitesOne site costs $149 or €29.99. Every extra site widens the gap, because Calculated Fields Form already covers all of them.
  3. Check your formulasBuild your hardest calculation in both free versions first. Both are on wordpress.org.
  4. Read the license termsSupport and refunds differ: 14 days at StylemixThemes, refunds for defects only at CodePeople. Our lifetime deal checklist lists what else to check.
  5. Mind the currencyOne vendor sells in US dollars, the other in euros. Your card provider may add a fee for the foreign currency.

Cost Calculator Builder or Calculated Fields Form: which one suits you?

Every price on this page was checked on the vendor’s pricing page: Cost Calculator Builder PRO on Oct 4, 2026, Calculated Fields Form Professional on Oct 4, 2026.

Frequently asked questions

Cost Calculator Builder vs Calculated Fields Form: which is better?

It depends on what the calculator should do. Cost Calculator Builder PRO costs $149 once for 1 site and takes payments and sends PDF quotes, Calculated Fields Form Professional costs €29.99 once for unlimited sites and focuses on formulas.

What is the best WordPress calculator plugin lifetime license for many sites?

In our catalog, Calculated Fields Form Professional is the cheapest option for many sites. Its single license costs €29.99 and covers unlimited sites, while Cost Calculator Builder PRO sells these tiers: 1 site for $149, 10 sites for $299, unlimited sites for $749.

What does Cost Calculator Builder Pro pricing look like?

The lifetime license starts at $149 for 1 site, as checked on Oct 4, 2026. The annual plan costs $59, and the lifetime tiers are 1 site for $149, 10 sites for $299, unlimited sites for $749.

Is Calculated Fields Form Pro worth it?

Yes, if the free version is not enough and you need multi page forms, stored messages with CSV export or a captcha. The Professional edition costs €29.99 once for unlimited sites including all future updates.

Which WordPress quote calculator can take payments?

Cost Calculator Builder PRO takes payments in its Pro license, with Stripe, PayPal, Razorpay and cash. Calculated Fields Form needs the higher Developer or Platinum edition for payment gateways.

Can I build a WooCommerce price calculator with these plugins?

Yes, with Cost Calculator Builder PRO, whose WooCommerce integration prices products by calculator values. Calculated Fields Form offers WooCommerce only in a higher edition than Professional.

What is a good Calculated Fields Form alternative?

Cost Calculator Builder is the closest one, with payments and PDF quotes built in from $149. A form builder with calculation fields works too if calculations are only a small part of your forms.

More form plugins with a lifetime license

14 form and calculator plugins in this category, each with the date we last checked the price.

See all form plugins

Ads don’t buy a review

Which deals appear in a guide and which drawbacks we name is an editorial decision. Affiliate links and booked placements never change what we write.

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