Jul 22, 2018 Metric measurements. A meter has been officially defined to be the distance traveled by light in a vacuum in 1/299,792,458 second. All other length and distance measurements in the metric system derive from the meter (eg. Km= 1000m, 1m= 1000mm). World Wide Metric serves the needs of the global maritime and industrial flow control and fluid power markets. We provide a broad range of products including valves, flanges, fittings, tubing and couplings in metric JIS and DIN, and ANSI standards.
Unit conversion is a multi-step process that involves multiplication or division by a numerical factor, selection of the correct number of significant digits, and rounding. This multi-step process is presented in NIST SP 1038 - 2006 (Section 4.4), including a rounding procedure for technical documents, specifications, and other applications such packaged goods in the commercial marketplace and temperature. Common conversion factors are also listed (Section 5).
- NIST HB 44 – Appendix C - (Current Ed.) provides several convenient conversion factor tables for length, area, volume (dry and liquid measure), and mass using SI (metric system) and U.S. customary units, including notes on British measurement units.
- NIST HB 133 Appendix E - (Current Ed.) provides unit conversion factor tables for the benefit of those requiring an reference when checking the net contents of packaged goods.
- NIST SP 811 – Appendix B - (Current Ed.) provides guidance on the use of conversion factors which are expressed using scientific notation (listed both alphabetically and by topic areas) and rules for rounding numbers and converted numerical values of quantities.
- NIST SP 1038 - 2006 lists the units of the International System of Units (SI), or metric system, recommended for use in trade and commerce and other general uses by the National Institute of Standards and Technology.
Unit Conversion Example
- 'If you have an amount of unit of A, how much is that in unit B?'
- Dimensional Analysis
- Principle - quantities defined as equalities
- Conversion Factor: an expression for the relationship between units.
Venus Si 2 Conversion Calculator
4 Steps
- What do you have?
- Starting Units
- What do you want?
- Desired Units
- Identify Conversion Factor(s)
- Ratio or Linking Units
- Cancel Units Where You Can and Do the Math
Setting Up the Problem
Example
Convert 5 m to ? cm
Contacts
Metric measurements
A meter has been officially defined to be the distance traveled by light in a vacuum in 1/299,792,458 second. All other length and distance measurements in the metric system derive from the meter (eg. km= 1000m, 1m= 1000mm).
Sims 2
Imperial / American measurements
Venus Si 2 Conversion Table
These measurements have a less logical progression. A yard can be defined as the length of a pendulum that causes its arc to swing in exactly 1 second. The Nautical mile is the distance across 1' (1/60 of a degree) around the earths surface.