Category value
bar height = value
Chart generator
Bar Chart Generator
Add item labels and values to quickly create a bar chart for data comparison.
Calculator
Enter chart items
Add a label and numeric value for each bar. Each item is assigned a distinct color.
Result
About this tool
How it works
The EngLab Bar Chart Generator compares numeric values across named categories. It is useful for reports, dashboards, experiments, project metrics, and quick visual summaries.
Formulas
Chart form used
Dataset
labels + numeric values
Worked example
Example inputs
Try labels such as Design, Testing, Build, and Review with values like 12, 18, 9, and 6.
Guide
How to use this calculator
- Add an item row for each category.
- Enter the item name and numeric value.
- Click Generate Bar Chart, then hover or download the chart as a PNG.
Reference
What the results mean
item label
The category name shown on the x-axis.
item value
The numeric height of the bar.
bar trace
A Plotly bar chart generated from the entered labels and values.
Assumptions and limits
Before using the chart
- Values should be numeric and comparable within the same dataset.
- Very long labels may need shorter wording for clear chart presentation.
- Use verified data before including the chart in formal reporting.
FAQ
Bar Chart Generator questions
Can I add more bars?
Yes. Use Add Item to add as many chart rows as needed.
Can values be decimals?
Yes. Decimal values are supported.
Can I export the chart?
Yes. Use Download PNG to save the bar chart.
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