GPA calculator template

Free build guide: GPA calculator for WordPress

This guide rebuilds the GPA calculator from this site in Gravity Forms: 14 inputs, 3 live results and no submit button. Expect about 51 minutes by hand. The template above is the same form as an import file, and the bundle adds a PDF version of this guide with a screenshot of every setting, plus the stylesheet.

You will end up with:

• Semester GPA
• Cumulative GPA
• Credits this semester

What you need

• Gravity Forms (any license) — Calculation fields and drop-down values are in core.

Everything here is core Gravity Forms. No add-ons.

1. Create the form

1. Go to Forms → New Form and name it GPA.
2. In Form Settings → Form Layout, set the CSS Class Name to fo-live-only. Step 3 uses it to hide the submit button.
3. Leave the form open in the editor; the fields come next.

2. Add the fields, in this order

Field IDs are assigned as you add fields. If yours come out differently, change the {Label:ID} references in the formulas to match your IDs. Settings not mentioned stay at their defaults.

1. Course 1 grade · Drop Down · ID 1
Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

Choices (tick show values and enter each value):

• A — value 4 (selected by default)
• A− — value 3.7
• B+ — value 3.3
• B — value 3
• B− — value 2.7
• C+ — value 2.3
• C — value 2
• C− — value 1.7
• D+ — value 1.3
• D — value 1
• F — value 0

2. Course 1 credits · Number · ID 2
Number Format 9,999.99; Default Value 3; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

3. Course 2 grade · Drop Down · ID 3
Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

Choices (tick show values and enter each value):

• A — value 4
• A− — value 3.7
• B+ — value 3.3 (selected by default)
• B — value 3
• B− — value 2.7
• C+ — value 2.3
• C — value 2
• C− — value 1.7
• D+ — value 1.3
• D — value 1
• F — value 0

4. Course 2 credits · Number · ID 4
Number Format 9,999.99; Default Value 3; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

5. Course 3 grade · Drop Down · ID 5
Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

Choices (tick show values and enter each value):

• A — value 4
• A− — value 3.7
• B+ — value 3.3
• B — value 3 (selected by default)
• B− — value 2.7
• C+ — value 2.3
• C — value 2
• C− — value 1.7
• D+ — value 1.3
• D — value 1
• F — value 0

6. Course 3 credits · Number · ID 6
Number Format 9,999.99; Default Value 3; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

7. Course 4 grade · Drop Down · ID 7
Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

Choices (tick show values and enter each value):

• A — value 4
• A− — value 3.7 (selected by default)
• B+ — value 3.3
• B — value 3
• B− — value 2.7
• C+ — value 2.3
• C — value 2
• C− — value 1.7
• D+ — value 1.3
• D — value 1
• F — value 0

8. Course 4 credits · Number · ID 8
Number Format 9,999.99; Default Value 3; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

9. Course 5 grade · Drop Down · ID 9
Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

Choices (tick show values and enter each value):

• A — value 4 (selected by default)
• A− — value 3.7
• B+ — value 3.3
• B — value 3
• B− — value 2.7
• C+ — value 2.3
• C — value 2
• C− — value 1.7
• D+ — value 1.3
• D — value 1
• F — value 0

10. Course 5 credits · Number · ID 10
Number Format 9,999.99; Default Value 0; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

11. Course 6 grade · Drop Down · ID 11
Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

Choices (tick show values and enter each value):

• A — value 4 (selected by default)
• A− — value 3.7
• B+ — value 3.3
• B — value 3
• B− — value 2.7
• C+ — value 2.3
• C — value 2
• C− — value 1.7
• D+ — value 1.3
• D — value 1
• F — value 0

12. Course 6 credits · Number · ID 12
Number Format 9,999.99; Default Value 0; Description “Leave credits at 0 for courses you are not taking.”; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

13. Previous GPA · Number · ID 13
Number Format 9,999.99; Default Value 0; Description “Optional: your GPA so far, for a cumulative figure.”; Range min 0 max 4; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

14. Previous credits · Number · ID 14
Number Format 9,999.99; Default Value 0; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed).

15. Semester GPA · Number · ID 15
Number Format 9,999.99; Description “On the 4.0 scale.”; Custom CSS Class (Appearance tab) fo-result; tick Enable Calculation, Rounding 2.

( {Grade 1:1} * {Credits 1:2} + {Grade 2:3} * {Credits 2:4} + {Grade 3:5} * {Credits 3:6} + {Grade 4:7} * {Credits 4:8} + {Grade 5:9} * {Credits 5:10} + {Grade 6:11} * {Credits 6:12} ) / ( {Credits 1:2} + {Credits 2:4} + {Credits 3:6} + {Credits 4:8} + {Credits 5:10} + {Credits 6:12} )

16. Cumulative GPA · Number · ID 16
Number Format 9,999.99; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed); Custom CSS Class (Appearance tab) fo-result fo-result--sub; tick Enable Calculation, Rounding 2.

( ( {Grade 1:1} * {Credits 1:2} + {Grade 2:3} * {Credits 2:4} + {Grade 3:5} * {Credits 3:6} + {Grade 4:7} * {Credits 4:8} + {Grade 5:9} * {Credits 5:10} + {Grade 6:11} * {Credits 6:12} ) + {Previous GPA:13} * {Previous credits:14} ) / ( ( {Credits 1:2} + {Credits 2:4} + {Credits 3:6} + {Credits 4:8} + {Credits 5:10} + {Credits 6:12} ) + {Previous credits:14} )

17. Credits this semester · Number · ID 17
Number Format 9,999.99; Layout: half width, on the same row as its neighbour (drag the field beside it in the editor; no CSS class needed); Custom CSS Class (Appearance tab) fo-result fo-result--sub; tick Enable Calculation, Rounding 0.

( {Credits 1:2} + {Credits 2:4} + {Credits 3:6} + {Credits 4:8} + {Credits 5:10} + {Credits 6:12} )

3. Hide the submit button

The results are live, so nothing needs submitting. Add this filter to your theme’s functions.php or a code-snippets plugin; it hides the button on any form carrying the fo-live-only class:

add_filter( 'gform_submit_button', function ( $button, $form ) {
	return str_contains( (string) rgar( $form, 'cssClass' ), 'fo-live-only' ) ? '' : $button;
}, 10, 2 );

Or with CSS alone: .fo-live-only_wrapper .gform_footer { display: none; }

4. Put it on a page and make it look like this

Add the form to any page with the Gravity Forms block, or the shortcode [gravityform id="X" title="false" ajax="false"]. The form inherits your theme’s styles; the classes you set in step 2 are hooks for the look you see on this site:

• fo-result on a calculation field makes it the big teal result panel.
• fo-result fo-result--sub makes the smaller secondary figures.
• fo-segmented on a radio field turns it into a segmented switch.
• Two fields on one row is the editor’s own column layout: drag a field beside another and the row splits in half. No CSS class is needed, and the old gf_left_half Ready Classes are deprecated.

The bundle includes the two stylesheets that implement those classes, with notes on matching your brand colours. Without them the form still works; it just looks like your theme’s default Gravity Forms styling.

How the maths works is explained under “How it’s calculated” on the live GPA calculator.