# 90 seconds in minutes

## Conversion

90 seconds is equivalent to 1.5 minutes.^{[1]}

## Conversion formula

How to convert 90 seconds to minutes?

We know (by definition) that: $1\mathrm{sec}\approx 0.016666667\mathrm{min}$

We can set up a proportion to solve for the number of minutes.

$\frac{1\mathrm{sec}}{90\mathrm{sec}}\approx \frac{0.016666667\mathrm{min}}{x\mathrm{min}}$Now, we cross multiply to solve for our unknown $x$:

$x\mathrm{min}\approx \frac{90\mathrm{sec}}{1\mathrm{sec}}*0.016666667\mathrm{min}\to x\mathrm{min}\approx 1.50000003\mathrm{min}$Conclusion: $90\mathrm{sec}\approx 1.50000003\mathrm{min}$

## Conversion in the opposite direction

The inverse of the conversion factor is that **1 minute is equal to 0.666666666666667 times 90 seconds**.

It can also be expressed as: 90 seconds is equal to $\frac{1}{\mathrm{0.666666666666667}}$ minutes.

## Approximation

An approximate numerical result would be: **ninety seconds is about zero minutes**, or alternatively, *a minute is about zero point six seven times ninety seconds*.

## Footnotes

[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).

Results may contain small errors due to the use of floating point arithmetic.