ClearTools Blog
Short, practical guides tied to our free calculators — how EMIs work, what GST slabs mean, why your BMI matters, and more.
How Loan EMI Is Calculated: The Formula, Step by Step
Understand the EMI formula used by every Indian bank, with worked examples, the reducing-balance method, and how interest-rate changes affect your monthly payment.
GST Calculator India 2026: Step-by-Step Guide
How GST is calculated in India, the difference between inclusive and exclusive GST, current slab rates (5/12/18/28%), and the CGST-SGST-IGST split explained with examples.
BMI Categories Explained: What the Numbers Actually Mean
Understanding BMI ranges — underweight, normal, overweight, obese — what they mean for health, the WHO Asian BMI cutoffs, and why BMI isn't the full story for athletes.
10 Everyday Uses for a Percentage Calculator
From shopping discounts to tip calculation to tax and exam marks — practical tricks and shortcuts to handle percentages in your head (or with one tap).
Unix Epoch Time Explained: What the Timestamp Actually Means
Why 1970 matters, how Unix timestamps work, the difference between seconds and milliseconds, the Year 2038 problem, and how to convert epoch to a human date.
About the Blog
Every article here is tied to one of our free calculators. We explain the formula, walk through a worked example, and link you straight to the tool so you can try your own numbers. No fluff, no popups, no account needed.
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