Century Converter

Free online date time unit converter.

Convert between all date time units instantly with accurate results, formulas, and reference tables.

No signup required.

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How This Tool Works

The Century Converter translates numeric values between years and centuries. It uses the fixed relationship 1 century = 100 years, so the forward conversion divides years by 100.

The formula is: centuries = years ÷ 100. In reverse, years = centuries × 100.

  • Input: Years
  • Conversion factor: 1 year = 0.01 century
  • Output: Centuries

Common Mistakes to Avoid

  • Do not enter calendar dates: This tool converts numeric durations, not dates like 2026-07-08.
  • Keep the direction clear: Use the swap button when converting centuries back into years.
  • Remember the scale: A century is 100 years, so small year values produce decimal century values.

Frequently Asked Questions

Common questions about the Century Converter

The 21st century (2001-2100). Centuries are numbered from year 1.
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