Likert Scale Mean & Top-Box Calculator
Turn Likert-scale response counts into a mean score plus top-box, top-2-box and bottom-box percentages.
How it works
mean = Σ(value × count) ÷ N · top-box % = highest-point count ÷ N
A Likert item asks respondents to pick a point on an ordered scale, and there are two common ways to summarise it. The mean treats the points as equally spaced numbers and gives one figure, while top-box reporting counts the share choosing the most favourable answer (or top two). Top-box percentages are easier for non-technical audiences to read and are less sensitive to the exact numbering of the scale.
Worked example
For counts 10, 20, 40, 60, 70 on a 1–5 scale (N = 200): mean = (10·1 + 20·2 + 40·3 + 60·4 + 70·5) ÷ 200 = 760 ÷ 200 = 3.80. Top-box = 70 ÷ 200 = 35%, top-2-box = (60+70) ÷ 200 = 65%.
Frequently asked questions
Is it valid to take a mean of Likert data?
It is common and useful for tracking change over time, but statisticians note that Likert scales are strictly ordinal, not interval. Report top-box percentages alongside the mean so readers are not misled by the assumption of equal spacing.
What is a top-2-box score?
It is the combined percentage choosing the two most favourable options — for example "agree" plus "strongly agree" on a 5-point agreement scale. It is a standard headline metric in customer and employee research.
Does the lowest scale value matter?
It shifts the mean but not the top-box or bottom-box percentages. Using 0–4 instead of 1–5 lowers every mean by exactly 1, so keep the numbering consistent when comparing results.
Related calculators
This calculator is for educational purposes. Double-check important results before acting on them.