1. What is Overall Rating?

The overall rating is a simple average calculated by dividing the sum of all individual ratings by the total number of ratings. It provides a quick snapshot of collective evaluation.

2. How Does the Calculator Work?

The calculator uses the overall rating formula:

Where:

• \(\sum(\text{Ratings})\) — Sum of all individual ratings
• \(\text{Number of Ratings}\) — Total count of ratings received

Explanation: This calculation gives equal weight to each rating and provides the arithmetic mean of all ratings.

3. Importance of Overall Rating

Details: Overall rating is widely used in product reviews, service evaluations, and performance assessments to provide a quick, at-a-glance understanding of collective feedback.

4. Using the Calculator

Tips: Enter the total sum of all ratings and the number of ratings received. Both values must be positive numbers (sum > 0, number of ratings ≥1).

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between overall rating and weighted average?
A: Overall rating treats all ratings equally, while weighted average assigns different importance to different ratings.

Q2: What's a good number of ratings for reliable overall rating?
A: Generally, the more ratings you have, the more reliable the overall rating becomes. A minimum of 10-20 ratings is recommended.

Q3: How should I handle decimal ratings?
A: The calculator accepts decimal values for more precise calculations, especially when dealing with rating systems that allow half-stars or quarter-points.

Q4: Can I calculate overall rating for multiple categories?
A: Yes, you can calculate separate overall ratings for each category, then average those if you want a combined score.

Q5: How often should I update the overall rating?
A: Update whenever new ratings are added to keep the overall rating current and representative.