Practical guides on money, documents, images, writing and code, and how to get a reliable answer from our free tools.
Students & Study
1,000 words is 2 pages single-spaced or 4 double-spaced by the usual rule, but only about 1.4 and 2.8 in 12pt Times New Roman. Charts by font, spacing and paper.
7 min read
SEO & Marketing
Markup is profit as a % of cost; margin is profit as a % of selling price. A 50% markup is only a 33.33% margin. Formulas, a table and GST examples.
7 min read
SEO & Marketing
Type https://wa.me/ and your number with country code but no +, 0 or spaces, e.g. wa.me/919876543210. Add ?text= for a pre-filled message. Steps, QR and tips.
7 min read
Data & Developers
Those long strings like 550e8400-e29b-41d4-a716-446655440000 — what they are, why they almost never collide, and when to use them instead of IDs.
2 min read
Text & Writing
Instagram "fonts" are Unicode maths characters, not fonts. How bold and italic text works, where it breaks, what screen readers hear, and how to use it well.
7 min read
Health & Fitness
Adults need 7+ hours. To wake between cycles, count back 90-minute cycles plus 15 minutes: for a 6:30 am alarm, go to bed at 10:45 pm. Tables and limits.
7 min read
Finance & Money
₹12 lakh a year at 40 hours a week is ₹577 an hour, but a freelancer needs about double. How to set an hourly rate, price projects and handle 44ADA and GST.
7 min read
Tips & Guides
Fuel cost = distance ÷ mileage × price per litre. A 560 km Delhi–Jaipur round trip at 15 km/l and ₹102.12 petrol costs ₹3,812. Tolls, splitting and EVs.
7 min read
Tips & Guides
That "Lorem ipsum dolor sit amet" placeholder text has a 500-year history and a real purpose. What it is, why it beats real text, and a free generator.
2 min read
Data & Developers
Regular expressions look like line noise but follow simple rules. The core syntax, the patterns you'll reuse forever, and a free live regex tester.
2 min read
Finance & Money
₹5,000 a month at an assumed 12% grows to about ₹11.6 lakh in 10 years and ₹50 lakh in 20. The SIP formula, tables, step-up SIP, XIRR and tax.
8 min read
Students & Study
Count the days to any date, decide whether to count both ends, then plan backwards from exam day, with a worked 107-day plan for a February board exam.
6 min read
