Skip to content
UtilHQ

Guides & Tutorials

Expert advice for your construction and DIY projects. Learn the formulas, avoid common mistakes, and get professional results.

guides

How to Fix Line Breaks from PDF Copy-Paste

Fix unwanted line breaks when copying text from PDFs. Learn why PDFs add breaks, how to remove them, and techniques for cleaning up formatted text quickly.

developer

How to Create SEO-Friendly URL Slugs

Learn how to create clean, keyword-rich URL slugs that improve search rankings. Covers best practices, common mistakes, and slug formats for every platform.

health

How to Count Calories for Weight Management

A practical guide to counting calories, calculating your TDEE, setting deficit or surplus goals, and tracking daily intake for effective weight management results.

developer

Color Theory Basics for Web Design

Master color theory for web design including the color wheel, complementary palettes, WCAG contrast requirements, and color psychology to create effective interfaces.

health

How to Calculate Your Daily Calorie Needs

Learn how to calculate your daily calorie needs using BMR formulas and activity multipliers. Covers TDEE, macronutrient ratios, and practical meal planning basics.

data

How to Generate Bold Text for Social Media

Learn how to create bold, italic, and stylized Unicode text for Instagram, Twitter, Facebook, and other platforms where standard formatting isn't available.

data

How Credit Card Number Validation Works

Understand how credit card numbers are structured, how the Luhn algorithm validates them, and what BIN numbers reveal. Educational guide for developers.

developer

How to Minify CSS for Faster Websites

Learn what CSS minification does, why it speeds up your website, what it removes from your stylesheets, and best practices for minifying CSS in production.

developer

Understanding Hex Color Codes and Conversions

Learn how hex color codes work, how to convert between hex and RGB values, pick accessible color combinations, and use common hex codes in your designs.

finance

How Compound Interest Works (With Examples)

Understand the compound interest formula, see how $10,000 grows over 30 years, learn the Rule of 72, and discover why compounding frequency matters for your money.

data

How Coin Flips Work: Probability, Math, and Common Myths

Understand the math behind coin flips: fair coin probability, the law of large numbers, gambler's fallacy, binomial distribution, and real-world applications.

data

How to Add, Subtract, Multiply & Divide Fractions

Step-by-step guide to adding, subtracting, multiplying, and dividing fractions. Covers common denominators, simplifying, and mixed number conversions.

Showing 1-12 of 163 articles