round off to
round off to (something)
To express a number as a higher or lower figure, as by eliminating all or some of the decimals from a fraction or by writing the number as a multiple of 10. A noun or pronoun can be used between "round" and "off." For the sake of simplicity, just round off to a whole number before entering the figure into the calculation. These larger companies tend to round off to the nearest million or hundred-thousand when reporting their sales figures to the public. Because the fraction 1/3 is infinitely repeating, we normally just round off to 0.33.
round off to somethingand round up to something; round down to something
to express a number in the nearest whole amount or nearest group of 1, 10, 100, 1,000, 1/10, 1/100, 1/1000, etc. When doing taxes, Anne rounded her figures off to the nearest dollar. These census population figures are rounded up to the nearest million.