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Bureau of Labor Statistics
(as of July 2021, seasonally adjusted):
U1:
Percentage of people who have been unemployed for 15 weeks or longer.
\(\frac{\textnormal{Unemployed (for 15+ Weeks)}}{\textnormal{Labor Force}} \times 100\)
2.9%
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U2:
Percentage of Job Losers (those who involuntarily lost their last job or who had completed a temporary job.)
\(\frac{\textnormal{Job Losers}}{\textnormal{Labor Force}} \times 100\)
3.1%
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U3:
Percentage of those without temporary, part-time, or full-time jobs (total unemployed).
Most common figure of unemployment.
\(\frac{\textnormal{Total Unemployed}}{\textnormal{Labor Force}} \times 100\)
5.4%
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U4:
Percentage of total unemployed and discouraged workers (those who can legally work but aren't actively seeking).
\(\frac{\textnormal{Total Unemployed + Discouraged Workers}}{\textnormal{Labor Force + Discouraged Workers}} \times 100\)
5.7%
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U5:
Percentage of total unemployed, discouraged workers and the marginally attatched
(unemployed who are/were actively seeking jobs but have not searched for work in the 4 weeks)
\(\frac{\textnormal{Total Unemployed + Marginally Attached}}{\textnormal{Labor Force + Marginally Attached}} \times 100\)
6.5%
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U6:
Percentage of total unemployed, marginally attached and part time due to economic reasons.
\(\frac{\textnormal{Unemployed + Marginally Attached + Part Time}}{\textnormal{Labor Force + Marginally Attached}} \times 100 \)
9.2%
International Labour Organization
(as of 2020):
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LU1:
Percentage of the labour force which is not currently employed.
\(\frac{\textnormal{Unemployed}}{\textnormal{Labor Force}} \times 100\)
8.1%
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LU2:
Percentage of the unemployed and those who are under time-related underemployment
(hours of work are insufficient in relation to an alternative employment situation)
\(\frac{\textnormal{Unemployment + Time-related Underemployment}}{\textnormal{Labor Force}} \times 100\)
10%
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LU3:
Percentage of the unemployed and the potential labour force (those who are unemployed and are actively seeking)
\(\frac{\textnormal{Unemployed + Potential Labour Force}}{\textnormal{Labor Force + Potential Labour Force}} \times 100\)
9%
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LU4:
Percentage of the unemployed, time-related underemployed and those in the potential labour force.
\(\frac{\textnormal{Unemployed + Time-related Unemployment + Potential Labour Force}}{\textnormal{Labor Force + Potential Labour Force}} \times 100\)
11%