Guides
Guides — guides, articles and tools from CalcaTools covering every topic in this category. Free, fast, browser-based explainers with no sign-up.
Gravel Calculator: Estimate Tonnage and Cubic Yards Easily
I remember standing in my driveway a few years ago, staring at a pile of gravel that looked like a small mountain. I had ordered twelve tons of crushed stone…
Body Type Calculator: Height and Weight Measurement Guide
I remember standing in front of a dressing room mirror three years ago, holding a pair of “slim-fit” chinos that refused to go past my thighs. Based on my height…
Landscaping Rock Calculator: Estimate Your Project Needs
I remember the first time I tried to “eyeball” a gravel delivery for my side yard. I figured three truckloads would be plenty. When the driver dumped the piles, I…
How to Calculate Your Exact Age in Years, Months and Days (Manual Method + Examples)
Ever tried to figure out exactly how old you are for a legal form or a milestone celebration? Just subtracting years isn’t enough. If you want the precise breakdown of…
How to Calculate a 60/40 Split (With Examples for Bills, Business & Inheritance)
A 60/40 split is one of the most common ways to divide money, work, or assets. It means one party gets 60% of the total while the other takes 40%.…
Griha Pravesh Muhurat: How the Auspicious Date Is Actually Calculated
Moving into a new home is a huge milestone. In Indian culture, we don’t just pick a random weekend to move our boxes. We look for a Griha Pravesh muhurat.…
BMI vs Body Fat Percentage: Which Number Actually Matters?
BMI and body fat percentage often get mixed up, but they tell very different stories about your health. Think of them as two different lenses on a camera. One gives…
How to Calculate Zakat on Gold and Silver (Nisab Thresholds Explained With Numbers)
Gold and silver are more than just shiny metals. They are the original yardsticks for zakatable wealth. In fact, the very definition of the nisab—the minimum amount of wealth you…
Zakat on Business Inventory: A Worked Example for Shop Owners
If you run a shop, a warehouse, or any business that keeps stock on hand, that inventory is considered zakatable wealth. Think of it this way: every lunar year, you…
GPA Explained: How Weighted vs Unweighted GPA Actually Works
GPA (Grade Point Average) is the average of your course grades, usually converted to a 4.0 scale. An unweighted GPA stops at 4.0 and treats every class the same. A…