DPI

Calculate dpi from a few simple inputs generally.

About DPI

DPI — figures are approximate reference values; verify current rates and rules with the official source before relying on them.

Formula

DPI = pixels ÷ inches

Worked example

With the default values below, DPI returns Resolution (DPI) of 300.0. Change any input above and every figure here is recalculated in your browser.

Inputs used

Pixels along one edgeaccepts 1–100,000: 3,000
Print size (inches)accepts 0.1–500: 10

Results

Resolution (DPI): 300.0
Pixel Count: 3,000
Print Size (in): 10.00

Step by step

1Values used
2Formula
3Resolution (DPI)= 300.0
4Pixel Count= 3,000
5Print Size (in)= 10.00

Assumptions and limits

The result is derived only from the 2 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
Reference estimate — verify with the official source.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Reference estimate — verify with the official source.

Frequently Asked Questions

Is this an official figure?

No — it is a reference estimate. Confirm rates, limits and rules with the official source.

How accurate is this estimate?

Rates are approximate reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.

DPI