Design
Hex to RGB: Color Codes Explained (Hex, RGB and HSL)
Convert hex to RGB and back by hand, learn what HSL means, and see common colors in all three formats, with simple examples anyone can follow.
· Tools Bucket Team
The Tools Bucket blog
Practical guides on health, money, productivity and everyday calculations from the Tools Bucket team.
Productivity
Best Pomodoro Timer Settings: 25/5, 50/10 or 90 Minutes?
Compare Pomodoro timer settings, from the classic 25/5 to 50/10, 52/17 and 90-minute blocks, and learn how to choose the right focus length for you.
· Tools Bucket Team
Money
How Much House Can I Afford? The 28/36 Rule Explained
How much house can I afford? Use the 28/36 rule and a step-by-step example to find your housing budget, loan size and price range, plus costs people forget.
· Tools Bucket Team
Health
Healthy Weight for Your Height: A Simple Chart for Adults
Find the healthy weight for height in kg and lb with this simple adult chart based on a BMI of 18.5 to 24.9, how it's worked out, and a note for Asian adults.
· Tools Bucket Team
Excel
How to Calculate Age in Excel and Google Sheets (DATEDIF Explained)
Calculate age in Excel or Google Sheets with DATEDIF: age in years, in years, months and days, on a specific date, plus fixes for common formula errors.
· Tools Bucket Team
Fitness
How Many Miles Is a 5K? Race Distances and Pace Conversions
How many miles is a 5K? It's 3.11. See 10K, half marathon and marathon distances in miles and km, plus an easy way to convert your running pace.
· Tools Bucket Team
Conversions
Celsius to Fahrenheit Chart: Weather, Fever and Oven Temps
Convert Celsius to Fahrenheit with easy charts for weather, body temperature and fevers, and oven settings, plus the formula and a quick mental trick.
· Tools Bucket Team
Money
10 Lakh Loan EMI: Monthly Payment Table for 1 to 10 Years
What is the 10 lakh loan EMI? See monthly payments at 8% to 15% interest for 1 to 10 years, the total interest you pay, and the EMI formula banks use.
· Tools Bucket Team
Education
How to Calculate Percentage of Marks (Step-by-Step With Examples)
Learn how to calculate percentage of marks with one simple formula, worked examples for papers with different totals, best-of-five results and CGPA.
· Tools Bucket Team
Conversions
Height Chart: Feet to cm for Every Height from 4 to 6 Feet
Convert feet to cm with this height chart covering every inch from 4'0" to 6'11", a cm to feet table and the simple formula: inches times 2.54.
· Tools Bucket Team
Conversions
Kg to Lbs Conversion Chart: 1 to 150 Kilograms in Pounds
Convert kg to lbs with this easy chart from 1 to 150 kg, a pounds to kilograms table, the exact formula and a quick double-and-add-10% mental trick.
· Tools Bucket Team
Tech
How to Create a Wi-Fi QR Code So Guests Can Connect Instantly
Create a Wi-Fi QR code in one minute so guests join your network without typing the password, plus the exact format, special characters and safety tips.
· Tools Bucket Team
Age
How Old Am I If I Was Born In...? Age Chart for 1960 to 2025
How old am I if I was born in 2000, 1995 or 2010? Find your age by birth year in this 2026 age chart for 1960 to 2025, plus the easy rule to work it out.
· Tools Bucket Team
Fun facts
What Day of the Week Was I Born? Find Out in Seconds
What day of the week was I born? Find out instantly with a free calculator, or learn the Doomsday rule to work out any date's weekday in your head.
· Tools Bucket Team
Security
Passkeys vs Passwords: Should You Switch in 2026?
What passkeys are, how they compare with passwords, the catches to know about, and a simple checklist for Cybersecurity Awareness Month.
· Tools Bucket Team
Health
Do You Really Need 10,000 Steps a Day? What Science Says
Do you need 10,000 steps a day? The number began as a 1965 marketing slogan. See how many steps a day studies link to a longer, healthier life.
· Tools Bucket Team
Health
Is BMI Accurate? What the New Obesity Definition Means for You
Is BMI accurate? Where body mass index falls short, what the 2025 obesity definition changed, and simple measures to check alongside your BMI.
· Tools Bucket Team
Money
The Rule of 72: How Long Until Your Money Doubles?
The rule of 72 shows how fast money doubles: divide 72 by the interest rate. See the chart, how debt and inflation double too, and why 72 works.
· Tools Bucket Team
Money
The 50/30/20 Rule: A Simple Budget That Actually Works
How the 50/30/20 rule works for budgeting: what counts as needs, wants and savings, a worked example, and how to adjust it when costs are high.
· Tools Bucket Team
Design
How to Choose a Color Palette That Actually Works
Pick a color palette with confidence: start from one base color, use the color wheel and the 60-30-10 rule, and check contrast so everyone can read it.
· Tools Bucket Team
Security
How Long Would It Take a Hacker to Crack Your Password?
How long would it take to crack your password? See the chart by length and character type, why real passwords fall faster, and how to make yours safe.
· Tools Bucket Team
Fun facts
How Old Would You Be on Mars? Your Age on Other Planets
Find your age on other planets: 30 Earth years is 124.6 on Mercury and 15.9 on Mars. See the chart, fun planet facts and how to work out your own age.
· Tools Bucket Team
Math
How to Calculate Percentages: Easy Formulas and Mental Math Tricks
Learn how to calculate percentages with three simple formulas, plus mental math tricks for discounts, tips and tax, and the common traps to avoid.
· Tools Bucket Team
Everyday
Metric to Imperial Conversions: A Cheat Sheet You'll Actually Use
Convert cm to inches, kg to pounds, km to miles and Celsius to Fahrenheit with this metric to imperial cheat sheet and easy mental shortcuts.
· Tools Bucket Team
Tech
How a QR Code Works (and How to Make One for Free)
How a QR code works, what error correction does, static vs dynamic codes, and how to make a free QR code that scans first time, plus how to stay safe.
· Tools Bucket Team
Fun facts
How Many Days Old Am I? Fun Milestones Hiding in Your Birthday
Find out how many days old you are, when you'll hit 10,000 days or a billion seconds, and other surprising milestones hiding in your birthday.
· Tools Bucket Team
Productivity
The Pomodoro Technique: A Simple Guide to Getting More Done
How the Pomodoro Technique works, why 25-minute focus sprints beat procrastination, and practical tips to make it stick for study or work.
· Tools Bucket Team
Security
How to Create a Strong Password You'll Actually Remember
What really makes a strong password, why length beats complexity, and simple ways to create passwords you'll remember but no one else can guess.
· Tools Bucket Team
Money
How Loan Interest Is Calculated (and 5 Simple Ways to Pay Less)
See exactly how loan interest is calculated, why early payments are mostly interest, and five simple ways to pay less over the life of your loan.
· Tools Bucket Team
Health
What Is a Healthy BMI? What Your Number Really Means
A healthy BMI for most adults is 18.5 to 24.9. Here's what your number really means, where BMI falls short, and two simple checks to do alongside it.
· Tools Bucket Team