Sizu Home › Calculators › Picture Size Checker
Opens on Chapter 9’s example: the dairy flyer’s milk bottles, for 100 and 200 gallons a day.
Enter your numbers, then press Calculate.
How it works
If the second value is r times the first and the picture grows r times in both height and width, it covers r² times the area; drawn as a solid in 3-D it suggests r³ times the volume. For an honest picture, grow each side by √r so the area grows r times; for a bubble, set the area (not the radius) to the value.
From the book, Chapter 9. Twice as tall is 4 times the ink, and a box drawn in 3-D looks 8 times as big; the honest scale is 1.414 each way. Bubbles of 1,000 and 9,000 sized by radius differ 81 times in area; sized honestly, the radius grows 3 times. A battery 40% bigger, drawn taller and wider, looks 96% bigger. Every chapter and its calculator →
Rounding is half up, the way the book rounds. Numbers can be typed as 1,450, $38, 12% or 2.5 million. Everything stays in your browser: no sign-up, nothing stored or sent.