How to Convert CGPA to Percentage (and Percentage to CGPA)
CGPA to percentage without the confusion: the standard 9.5 formula, when your university’s own formula matters more, and a table for the most common CGPA values.
How-To Guides
How-To Guides
How to Work Out How Much Paint You Need for a Room
Stop buying too much paint or running out halfway: measure the walls, subtract doors and windows, divide by coverage, and always allow for two coats.
Converters
How to Convert Miles to Kilometres (and Back Again)
Miles to kilometres made simple: the exact conversion factor, a quick mental shortcut, a conversion table, and the mistakes that make road-trip maths go wrong.
Calculators
How to Calculate Average Speed for a Journey
Average speed is total distance divided by total time — not the average of two speeds. Worked road-trip examples, the mistake almost everyone makes, and how to use it for real travel planning.
How-To Guides
How to Split a Bill Fairly Among Friends
Splitting a bill without the awkwardness: equal splits, unequal orders, tax and tip, one person paying upfront, and the exact wording that keeps friendships intact.
Calculators
How to Calculate Simple Interest on a Loan or a Deposit
Simple interest explained in plain words: the formula, a worked example with real numbers, the difference from compound interest, and the mistakes that cost people money.
How to Compress an Image Without Making It Look Blurry
That 4.8 MB photo needs to be under 500 KB. Learn how to shrink image files properly, keep them sharp, and avoid the resizing mistake that makes them blurry.
How to Make a Simple Monthly Budget in a Spreadsheet, From Scratch
Make a simple monthly budget in a spreadsheet from a blank page, with real rent, food and transport figures, simple SUM formulas, and room for yearly costs.
How to Turn Photos into a Single PDF on Your Phone or Computer
Sent seven separate photos when they asked for one file? Learn how to turn your pictures into a single tidy PDF on your phone or computer, in the right order.
How to Check Your Typing Speed in Words Per Minute and Improve It
Stuck at 38 words per minute? Learn how to test your typing speed properly, spot what slows you down, and practise in a way that actually raises your score.