Converters

Find the Right Converter for Your Situation

Most conversion questions come up in specific situations — you're reading a European recipe with metric weights, buying clothing from a Japanese size chart, trying to understand a hex color code in a design file, or converting a CSV export to JSON for an API call. The tools here are organized by those situations so you can find the right one without browsing through long lists.

Unit and Measurement Conversions

Need to convert between metric and imperial? The Unit Converter handles length, weight, temperature, volume, area, and more in one place. Measuring a room for flooring or a yard for materials? The Square Footage Calculator converts dimensions to area for any rectangular or irregular space. Working with electrical measurements? The Watts to Amps Calculator handles AC and DC circuits, and the AWG to mm Converter translates American wire gauge to metric diameter. Need to know if your monitor is the size it claims? The Monitor Size Calculator checks diagonal measurements and aspect ratios.

Numbers, Codes, and Data Formats

Working in a developer or technical context? The Binary Converter handles binary, decimal, hex, and octal in both directions. The Hex Color Converter translates between hex codes, RGB values, and HSL for design work. Need to translate data for an API or configuration file? The CSV to JSON Converter, YAML to JSON Converter, and TOML to JSON Converter handle the most common format transformations. For everyday number translation, Roman Numeral Converter and Number to Words handle edge cases that come up in legal documents, clock faces, and more.

Text and Typography

Formatting text for different contexts often requires specific case conventions. The Case Converter switches between title case, sentence case, UPPER, lower, camelCase, and snake_case — useful for variable naming or content formatting. Need decorative text for social media or design work? The Fancy Font Generator converts plain text to Unicode stylized characters, and Tiny Text Generator produces superscript and subscript text that works in any plain text field.

Clothing Sizes and Fabric

International clothing sizes are inconsistent by design — US 8, UK 12, EU 38, and Japanese 36 can all refer to similar proportions. The Clothing Size Chart maps between US, UK, EU, and Asian sizing for men and women. For shoes, the Shoe Size Converter handles US, UK, EU, and Japanese sizing. Buying jewelry online? The Ring Size Calculator converts between US, UK, and European ring size standards. Working with fabric? The Fabric Weight GSM Chart translates between grams per square meter and ounces per square yard.

Price, Shopping, and Everyday Calculations

The Price Per Unit Calculator compares products sold in different quantities — is the 32 oz bottle actually cheaper per ounce than the 12 oz? The Tip Calculator splits any bill by person and calculates tip percentages. The Shrinkflation Calculator quantifies how much a product has effectively increased in price when the package size got smaller without a price change. The Percentage Calculator handles all the common percentage scenarios: percentage of a number, percentage increase or decrease, and what percentage one number is of another.

Picking the Right Tool for the Task

For general measurement conversions between metric and imperial, start with the Unit Converter — it covers the most common categories in one place. For technical work involving data formats (CSV, YAML, TOML to JSON), go to the Number and Code Converters section. For clothing and sizing questions, the Clothing Size Chart and Shoe Size Converter are the most-used starting points, but always check the specific brand's size guide since fit varies even within a standardized size system. For design and development work, the Hex Color Converter and Case Converter handle the conversions that come up most frequently when moving between tools. The percentage calculator is worth bookmarking as a standalone — percentage questions come up in tax calculations, discounts, tips, grade calculations, and dozens of other everyday situations where a dedicated calculator is faster than mental math. Every tool in this category runs entirely in your browser, so conversions are instant and private. No data is sent anywhere, and all tools work without a login or account. They're designed to answer the specific question in front of you, not to require learning a complex interface first. For recurring conversions — like checking clothing sizes when shopping from international retailers, or converting recipe measurements when cooking from overseas sources — these tools work better as bookmarked browser tools than searching each time, since the same questions come up repeatedly in specific contexts. The data format converters (CSV, YAML, TOML to JSON) are particularly useful as bookmarks for developers who work across multiple tools and configuration formats — having a browser-based converter available means no copy-paste into an online tool that might log your data.