The 10 Best Pepper Mills in 2021 The Spruce · Pepper mills can be as small as 3 inches to sometimes 24 inches in height The size that s right for you depends on the space you have in your kitchen and where you plan on storing the mill Of course a pepper mill that s 2 feet tall is more on the unpractical side although it may be a fun statement kitchen piece to admire Ultimately it comes down to personal preference The bigger the