How to Calculate BMI: Formula, Chart and Examples
Learn how to calculate BMI in kg and cm or pounds and inches, read the BMI chart, and understand what your result means, with simple worked examples.
Custom Converter Blog: guides for every tool – page 4
How Currency Exchange Rates Work: A Simple Guide
Understand how currency exchange rates work: buying and selling rates, the spread, mid-market rates, why rates change daily and how to convert money correctly.
How Prayer Times Are Calculated: Sun Angles and Methods
Learn how prayer times are calculated from the sun's position: Fajr and Isha angles, Asr shadow rules (Hanafi and Shafi), and the main calculation methods.
How to Convert PDF to Word and Keep the Formatting
Convert PDF to an editable Word document online for free, keep formatting as close as possible, and fix common problems with tables, fonts and scanned files.
How to Calculate CGPA From Semester GPAs (Step by Step)
Learn how to calculate CGPA from your semester GPAs and credit hours, with a worked example, common mistakes and tips for checking your transcript.
How to Calculate GPA: Credit Hours, Grade Points and Examples
Learn how to calculate your semester GPA step by step using credit hours and grade points on the 4.00 scale, with a worked example and common mistakes.
How to Calculate Zakat: Nisab, Assets and a Worked Example
Learn how to calculate zakat step by step: nisab in gold or silver, which assets count, deducting debts and a worked example in Pakistani rupees.
How to Calculate Age from Date of Birth (Years, Months, Days)
Learn how to calculate age from date of birth in years, months and days, by hand or with a free age calculator, including leap years and month-end birthdays.
How to Calculate Percentage: Simple Formulas With Examples
Learn how to calculate percentage in four common ways: X% of a number, what percent one number is of another, increase and decrease, with clear examples.
Why the Dollar Rate Changes in Pakistan: A Plain-English Guide
Why does the dollar rate in Pakistan keep changing? Learn how imports, remittances, reserves, interest rates and IMF programmes move the USD to PKR rate.