The HukhLatri blog
Long-form explainers that sit beside our calculators. Every article works through real numbers, says where a rule of thumb stops working, and links to the tool so you can try your own figures. Topics: finance, health, math, security, writing.
Why Word Counters Disagree, and How Long Your Writing Should Be
Hyphens, numbers, URLs and Hindi text can change a word count by half. See six test strings counted two ways, plus reading and speaking time worked out.
SecurityWhy Strong Passwords Still Get Hacked, and What Helps First
Reuse, phishing, infostealer malware, SIM swaps and OTP scams beat strong passwords every day. Here are the real causes and the fixes in order of payoff.
SecurityHow to Build a Password That Holds Up: Length, Entropy, 2FA
Sixteen random lowercase letters beat eight symbol-packed characters by about seven million times. The entropy maths, passphrases, managers and 2FA explained.
FinanceSIP vs Lumpsum: What the Maths Says and What It Misses
Lumpsum beats SIP on paper, yet SIP suits most salaried investors. Worked ₹ examples at 12% and 8%, step-up SIP and inflation, with the assumptions shown.
FinancePrepay Your Home Loan or Start a SIP? The Numbers at ₹5,000 a Month
₹5,000 a month extra on an 8.75% home loan versus the same amount in a SIP, over 20 years, with the breakeven return and where the comparison breaks.
MathPercentage Mistakes That Cost Real Money, with ₹ Examples
Why 30% plus 20% off is not 50%, why a 20% rise doesn't undo a 20% fall, and how to find the original price. Seven percentage traps, each worked out in ₹.
FinanceGST Calculation After the 2025 Reform: Forward, Reverse, Split
How to add and remove GST at 5%, 18% and 40% after the September 2025 changes, with worked ₹ examples, the CGST/SGST/IGST split and invoice errors to avoid.
FinanceHow a Home Loan EMI Is Built, and Why Year One Is Mostly Interest
Work through a ₹50 lakh, 20 year home loan at 8.75%: the first EMI split, balance after 5 and 10 years, and what a 1% rate change costs you.
HealthBMI for Indians: What the Number Means and Misses
BMI uses one height and one weight. See why India's cutoffs are 23 and 25, who the number misleads, and how waist-to-height gives a second opinion.
MathHow Age Is Calculated: Completed Years, Month-Ends, 29 February
Why 25 years 11 months 30 days is not 26, how month-end borrowing works, what happens to 29 February births, and how to read an age-as-on-date rule.