Does it support metric and imperial units?

Yes. Each category includes both metric (SI) and imperial units where applicable, so you can convert between systems freely.

How precise are the results?

Results are computed to 10 significant figures and then trimmed of trailing zeros. For most practical purposes this exceeds the precision you need.

Calculate BMI in metric or imperial units with category and healthy weight range.

Calculate exact age in years, months, and days from a date of birth.

Extract a single CSV column by header name or index.

Convert CSV rows to TSV, semicolon, or pipe-delimited text.

Convert CSV data to a JSON array of objects with delimiter auto-detection.

Convert CSV data into a Markdown table.