Pixels Per Inch (PPI) Calculator

Pixels Per Inch (PPI):

1. What is Pixels Per Inch (PPI)?

Definition: Pixels Per Inch (PPI) is a measure of pixel density on a display, calculated using the formula:

$$ PPI = \frac{d_p}{d_i} $$

Variables:

PPI : Pixels per inch (pixels/inch).
d_p : Diagonal resolution in pixels.
d_i : Diagonal size (convertible to inches).

Explanation: PPI indicates how many pixels are packed into one inch of a display, affecting its sharpness and clarity.

2. Importance of PPI

Details: PPI is crucial in display technology, determining the clarity and quality of images on screens, such as monitors, TVs, and smartphones.

3. Using the Calculator

Tips: Enter the diagonal resolution in pixels and the diagonal size in inches (or other supported units). Click "Calculate" to get the PPI. Results greater than 10,000 or less than 0.00001 will be displayed in scientific notation.

Frequently Asked Questions (FAQ)

Q1: What is PPI?
A: Pixels Per Inch (PPI) measures the pixel density of a display, indicating its sharpness.

Q2: Why use diagonal resolution?
A: Diagonal resolution provides a single metric for the pixel count across the entire display, matching the diagonal size.

Q3: What units are used?
A: Diagonal resolution is in pixels, diagonal size is in inches (convertible from m, cm, mm, ft, yd), and PPI is in pixels/inch.

Q4: How does PPI affect display quality?
A: Higher PPI means more pixels per inch, resulting in sharper and clearer images.

Q5: How accurate is this calculator?
A: The calculator is accurate based on the given formula and input values, assuming a uniform pixel distribution.

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