Guides & how-tos
Practical answers with the math shown — every guide pairs with a free calculator. Written by Mohamed Zakrya.
Utilities
How Many Pages Is 1,000 Words?
Two pages single-spaced, four double — every guide agrees, and every guide credits it to Times New Roman. The number is a typewriter measurement, and it can only ever overstate your page count.
September 6, 2026 · 7 min read
Health & Fitness
How Many Steps Are in a Mile? Not 2,000
Every page prints 2,000 steps to the mile. Run the step-length model backwards and that is the figure for someone six foot four — everyone shorter walks more, and pace moves it almost as much as height does.
September 6, 2026 · 8 min read
Math
The GPA Scale Is Not a National Standard
Every GPA page prints a 4.0 table as though it were fixed. Rice changed what an A+ is worth in 2018, and Memphis pays 3.84 for an A− — the scale is policy, set school by school.
September 4, 2026 · 7 min read
Dates & Time
Time and a Half: The Regular Rate Is Not Your Hourly Wage
Every explanation says multiply your hourly rate by 1.5. That is the wrong number the moment a bonus, a shift differential, or a second pay rate enters the week.
August 30, 2026 · 8 min read
Dates & Time
Federal Holidays: the Dates, and the Rules Behind Them
Eleven federal holidays — but not always eleven days off. The holiday keeps its statutory date; only the day off moves, and sometimes it moves into the next year.
August 28, 2026 · 8 min read
Dates & Time
How Many Working Days Are in a Year?
250 working days, 2,000 hours, exactly 50 five-day weeks. That tidy set of numbers is true this year and wrong next year, and the leap year is not the reason.
August 28, 2026 · 6 min read
Home Improvement
How to Connect a Portable Generator to Your House
One decision picks your method: are you powering things, or powering circuits? Everything else follows from that, including whether you need an electrician at all.
August 26, 2026 · 14 min read
Cooking
How Many Grams in a Cup? Every Ingredient, One Chart
One formula, fourteen densities. Why flour is 120 g, honey is 340 g, and the ingredient — not the cup — decides the number.
August 26, 2026 · 14 min read
Health & Fitness
How Much Protein Do I Need a Day? Grams by Goal and Body Weight
Your weight in kilograms times a goal factor. The factor is the whole story — and the range matters more than the number.
August 26, 2026 · 13 min read
Finance & Math
How Much Should You Tip? Rates by Situation, With the Math
The customary rates by setting, the three-line formula, and the split order that keeps the tip at the rate you chose.
August 26, 2026 · 12 min read
Travel
How Much Will Gas Cost for My Trip? Road-Trip Fuel Math
Three numbers set the fuel bill: miles driven, the MPG you actually get, and today's price. Most bad estimates get the middle one wrong.
August 26, 2026 · 12 min read
Home Improvement
How Much Grass Seed Do I Need? Rates by Grass Type
The rate for every grass type, the half rate for overseeding, and the seeding window that decides whether any of it works.
August 26, 2026 · 7 min read
Cooking
Baking Pan Sizes: The Two Loaf Pans, the Sheet Ladder, and the One Rule That Governs Both
A pan substitution is an area problem. Get the area right and the only thing left to manage is how deep the batter sits — which is what actually decides the bake.
August 23, 2026 · 12 min read
Cooking
How Long to Cook a Turkey: The USDA Times, and Why They Are a Window
Weight gives you a schedule. A thermometer gives you a finish. The gap between those two ideas is where most turkey advice goes wrong.
August 23, 2026 · 13 min read
Cooking
A Stick of Butter, in Every Unit — and the Two Shapes Nobody Mentions
The stick is the one American measure that works cleanly — right up to the moment a recipe asks for a third of a cup.
August 23, 2026 · 12 min read
Home Improvement
How Much Yeast Is in a Packet? Seven Grams, and Three Quarters of a Tablespoon
The teaspoon answer is everywhere. The tablespoon answer is the one people actually need, because a whole tablespoon is a third too much.
August 23, 2026 · 11 min read
Cooking
Instant Yeast vs Active Dry: Four Rules, and Two Fail Their Own Reversal
Convert one way, convert back, and see whether you land where you started. Two of the four published rules do not.
August 23, 2026 · 14 min read
Cooking
180°C Is Gas Mark 4 — and the Chart That Says So Is Not a Conversion
The gas mark scale is Fahrenheit. The Celsius numbers next to it are dial settings someone chose, which is why they nearly work and occasionally do not.
August 23, 2026 · 11 min read
Travel
Carry-On Weight Limits by Airline: What Each One Actually Publishes
The question assumes a rule that the three largest US airlines do not have. What they publish instead is stranger, and more useful to know.
August 22, 2026 · 12 min read
Unit Converters
How Many Decimals to Keep When Converting Units
The factor is exact to nine digits. The measurement you typed is good to one. Only one of those two limits the answer, and it is not the factor.
August 19, 2026 · 9 min read