9448, which rounds to 1, so you get 1/4 of an inch (which happens to be accurate) 315, which rounds to 0, so you get 0/4 of an inch (not a very useful number!) Using the numbers from step 1, that I also used in step 2, you would get. To round to the nearest 1/4 of an inch, simply replace all the 16's in Step 2's examples with 4's. If you are not making jewelry, or your needs are not very exact, then you can round to a larger fraction such as 1/4. don't forget to add the 1 back on, so this is really 1-9/16 inch.įor jewelry purposes, I don't recommend rounding to larger fractions, such as 1/4, or even 1/8 inch. don't forget to add the 1 back on, so this is really 1-3/16 inch.ġ.5748 Removing the 1 gives you. 1811 times 16 = 2.9, which rounds to 3, so about 3/16 inch.
From Example 2 above, you know that a 6mm bead =. If you are trying to figure out how many 6mm beads you need for a 20" necklace, you can use this decimal value directly. (or divide your centimeter amount by 2.54)Įxample 1: 2mm divided by 25.4 =. Step one: Divide your millimeter amount by 25.4.If you have millimeters (or centimeters), and you want inches:
#Decimal to fraction drill chart plus#
For amounts over an inch, you want to first convert the fractional part, then add the whole inches part:Įxample: 2-1/4 inch = 1 divided by 4, then plus 2 = 2.25 inchĮxample: 1-5/8 inch = 5 divided by 8, then plus 1 = 1.625 inch.Step one: Convert any inch fractions to decimals.Įxample: 1/4 inch = 1 divided by 4 = 0.25 inchĮxample: 1/16 inch = 1 divided by 16 = 0.0625 inch.If you have inches, and want to know how many millimeters: 7mm = almost 9/32 inch (= a bit over 1/4 inch).4mm = 5/32 inch (= a bit over 1/8 inch).If you have the millimeters, and need to know the inches: If you have the inches, and need to know the millimeters:
#Decimal to fraction drill chart how to#
How to make Exact Conversions, with a calculatorĮasy Approximations, without a calculator:.In case you've never gotten along with millimeters, or in case you need to do some conversions and never got along with algebra, this page contains easy conversions back and forth between inches and millimeters. but is 1/8" larger or smaller then 5/32"? Even if you've always hated the metric system, that row of millimeter sizes is clearer than that row of inch fractions: it's obvious that 4mm is larger then 3mm. If those were converted to inches, they would be (in order) approximately 1/8 inch, 5/32 inch, 1/4 inch, 5/16 inch, and 3/8 inch. For example, the gluing surfaces on most of our flat pad posts are 3mm, 4mm, 6mm, 8mm, and 10mm. Organizers/ Storage for Jewelry Parts/ Toolsīecause millimeters are very small, they are perfect for measuring jewelry parts.Bench Blocks, Bench Pins, Pads & Anvils.
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