Calculators · Gutenberg
Roman Numeral Converter block for WordPress
Convert integers to Roman numerals and Roman numerals back to integers. Supports 1–3999.
Get Blockenberg
Free Gutenberg block in Blockenberg. The inspector controls and front-end behavior on this page come from this block’s source, not a shared stub.
What it actually does
Convert integers to Roman numerals and Roman numerals back to integers. Supports 1–3999.
Inspector panels on this block: Header, Converter Settings, Sizing & Layout. Those titles come from index.js, not from a shared template.
Behavior controls: “Default Mode” options: Number → Roman, Roman → Number.
Where to find it
Gutenberg inserter → Calculators → search “Roman Numeral Converter” (block name `blockenberg/roman-numeral-converter` in block.json). Style it in the sidebar after insert.
How to use Roman Numeral Converter block for WordPress
- Install Blockenberg. Install from WordPress.org and activate the plugin.
- Insert the block. Edit a page, click +, search for “Roman Numeral Converter”, insert it. Category: Calculators.
- Configure inspector controls that exist on this block. Open Header. Set “Show Title”, “Show Subtitle”, “Header — Title”, “Subtitle”.
- Check the published page. The view script reads HTML data attributes: data-opts. The block editor preview may not run the same view script.
Inspector controls from this block’s code
| Control | What the code does |
|---|---|
| Show Title | On/off toggle in the inspector. On by default. Saved as `showTitle`. |
| Show Subtitle | On/off toggle in the inspector. On by default. Saved as `showSubtitle`. |
| Header — Title | Text field in the inspector. block.json default: Roman Numeral Converter. Saved as `title`. |
| Subtitle | Text field in the inspector. block.json default: Convert integers to Roman numerals and vice versa. Saved as `subtitle`. |
| Default Mode | Select control; the chosen value is saved on the block. Options: Number → Roman; Roman → Number. block.json default: toRoman. Saved as `defaultMode`. |
| Default Value | Text field in the inspector. block.json default: 2024. Saved as `defaultValue`. |
| Show Copy Button | On/off toggle in the inspector. On by default. Saved as `showCopyButton`. |
| Show Reference Table | On/off toggle in the inspector. On by default. Saved as `showReferenceTable`. |
| Show Fun Fact | On/off toggle in the inspector. On by default. Saved as `showFunFact`. |
| Output Font Size | Numeric range control in the inspector. Range 20–96. block.json default: 52. Saved as `outputFontSize`. |
| Card Border Radius | Numeric range control in the inspector. Range 0–40. block.json default: 16. Saved as `cardRadius`. |
| Input Border Radius | Numeric range control in the inspector. Range 0–20. block.json default: 8. Saved as `inputRadius`. |
| Max Width (px) | Numeric range control in the inspector. Range 300–900. block.json default: 560. Saved as `maxWidth`. |
| Padding Top | Numeric range control in the inspector. Range 0–160. block.json default: 60. Saved as `paddingTop`. |
| Padding Bottom | Numeric range control in the inspector. Range 0–160. block.json default: 60. Saved as `paddingBottom`. |
What the front-end script actually does
- The view script reads HTML data attributes: data-opts.
When this is the right block
- Convert integers to Roman numerals and Roman numerals back to integers. Supports 1–3999 — that is the job of Roman Numeral Converter, not a generic content block.
- Use it when you need the editor control labeled “Show Title”, which exists on this block’s inspector.
- It matches pages about roman, numeral, converter.
- Inserter grouping: tools, lead magnets, and interactive widgets.
Notes from the implementation
viewScript: this folder’s frontend.js is enqueued on the front end for this block.
FAQ
How do I add the Roman Numeral Converter block in WordPress?
Install Blockenberg from WordPress.org, edit a page in the block editor, click +, and search for “Roman Numeral Converter”. It sits under Calculators. After insert, open Header and set “Show Title”, “Show Subtitle”, “Header — Title”, “Subtitle”.
What makes Roman Numeral Converter different from other Blockenberg blocks?
Convert integers to Roman numerals and Roman numerals back to integers. Supports 1–3999. Inspector labels on this block include “Show Title”, “Show Subtitle”, “Header — Title”, “Subtitle”.
Is the Roman Numeral Converter Gutenberg block free?
Yes. Roman Numeral Converter ships inside Blockenberg. Get the plugin from WordPress.org — no paid add-on is required for this block.
Can I style Roman Numeral Converter to match my theme?
Yes. Blockenberg’s shared typography and color panels apply here, plus any block-specific style controls listed on this page (panels: Header, Converter Settings, Sizing & Layout).
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Get Blockenberg
Install Blockenberg from WordPress.org, then insert Roman Numeral Converter from the Gutenberg inserter.