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Sources and Accuracy
Length conversions use the metre as the reference unit. Common imperial relationships are exact where standardized, such as 1 inch = 0.0254 metre and 1 foot = 0.3048 metre.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
yard [yd]
Definition
The yard is an imperial and US customary length unit equal to exactly 0.9144 meters.
History
The modern yard was standardized through the international yard and pound agreement.
Current use
Yards are used in fabric measurement, landscaping, sports fields, construction, and household projects.
parsec [pc]
Definition
The parsec (pc) is a length unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use parsec when comparing length values, checking specifications, converting between systems, or preparing quick estimates.