YAYA JOURNAL · Yaya Blog
Turn hard problems into
steps you can follow
Practical guides for browser tools, debugging, and productivity — with clear steps, real examples, and reusable checklists.
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Concrete Calculator: Estimate Yards and Bags for a Slab
Learn how a concrete calculator converts slab dimensions into cubic feet, cubic yards, liters, and a rounded ready-mix bag estimate.
Pace Calculator: Convert Running Pace, Speed, and Finish Time
Use a pace calculator to turn a time and distance into pace, speed, or a steady finish-time estimate in miles and kilometers.
Simple Interest Calculator: Use I = Prt Correctly
Use I = Prt to calculate simple interest. Convert months and days to years, work an $8,000 example, and see when compounding is the wrong model to use.
Chinese Word Count: Word vs Google Docs
Chinese word count differs in Word, Google Docs, and online tools. This guide maps Hanzi, characters without spaces, and English words to what each app shows.
Base Converter Guide: Binary, Decimal, and Hex
Convert binary, decimal, hexadecimal, and bases 2–36 online. Follow worked examples for FF and 255, common prefixes, negative values, BigInt, and errors.
ROI vs Annualized Return: What to Compare
Learn how ROI and annualized return measure results differently. Use formulas, examples, and a local ROI calculator to compare investment periods clearly.
BMR/TDEE Calculator: Mifflin-St Jeor Guide
Estimate BMR and TDEE with the Mifflin–St Jeor equation. See a worked example, activity factors, input limits, calibration steps, and practical safety notes.
BMI Calculator: Chinese Adult Weight Ranges
Calculate BMI from height and weight with Chinese adult reference ranges. See the formula, worked example, healthy-weight estimate, limits, and next steps.
Standard Deviation Calculator: Which Formula?
Use a standard deviation calculator for population and sample data. Follow a worked example, compare n with n−1, and understand variance and CV limits.