1.5 (one and one half, three halves, or sesquialterum) may refer to:
*1.5 °C is the preferred limit of
global warming
In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to E ...
signed in the
Paris Agreement
*''1.5'', an album by
Big Data
*
Superparticular ratio
In mathematics, a superparticular ratio, also called a superparticular number or epimoric ratio, is the ratio of two consecutive integer numbers.
More particularly, the ratio takes the form:
:\frac = 1 + \frac where is a positive integer.
Thu ...
: 3/2 or 1
*
Perfect fifth (3/2), a musical interval
{{number disambiguation