The Best Charts for Comparing Data
Updated · 2 min read
“Comparison” covers several different questions. Pick the chart that matches yours.
Ranking items: sorted bar chart
Which is biggest? Which is smallest? Sort a bar chart from largest to smallest. Use horizontal bars when names are long.
Comparing groups across categories: grouped bars
2024 vs 2025 by quarter, or men vs women by department. Grouped bars put the bars you compare side by side. Keep to two or three groups.
Comparing totals and their parts: stacked bars
When both the total and its composition matter, a stacked bar chart shows both. Switch to 100% stacking to compare proportions across bars of very different sizes.
Finding the biggest contributors: Pareto chart
A Pareto chart sorts categories and adds a cumulative percentage line, so you can see which few causes produce most of the effect.
Comparing profiles across many criteria: radar chart
Two products rated on six attributes? A radar chart shows each as a shape, which highlights strengths and trade-offs. Set a fixed scale (for example 0–10) and compare spoke by spoke, not by area.
Comparing two groups across ordered bands: population pyramid
The population pyramid puts two distributions back to back on the same scale. It is ideal for age-by-sex data and for any two-group comparison across ordered bands.
Comparing distributions: box plots
Averages hide spread. Box plots compare medians, quartiles and outliers across groups in one view.
Comparing before and after: slope or grouped bars
For two time points, grouped bars or a two-point line graph (a “slope chart”) both work. Lines emphasise the direction of change.
Tools used in this guide
- Bar Graph MakerCompare categories with vertical or horizontal bars, grouped or stacked.
- Radar Chart MakerCompare profiles across several criteria on a spider-web grid.
- Pareto Chart MakerSorted bars plus a cumulative % line to find the vital few causes.
- Population Pyramid MakerBack-to-back bars comparing two groups across age bands.