Last week I reported that Spotlight in Tiger (OS 10.4) could perform simple calculations. Unfortunately, this is not correct; Spotlight will only do this in Leopard.
If you’re online, it’s possible to use Google for simple calculations just as you’d use Spotlight. To use Google’s built-in calculator function, simply enter the calculation into the search box and hit return.
You can also use Google to convert between different units of measurement of height, weight, and mass among others. Simply enter the desired conversion into the search box as a plain question (“three quarters of a cup in teaspoons,” or “98.6 degrees Fahrenheit in degrees Celsius”) and Google will do the rest.
See more of Google’s handy little features here:
More about search terms/ criteria in Spotlight in Mac OS 10.4:
And more about search terms/criteria in Spotlight in Mac OS 10.5: