RollLengthCalculator

RollLengthCalculator version 1.0.1

Find roll length from diameter and thickness

$$L = \frac{(OD^2 /4)−(ID^2 /4)}{t}$$ L=π*((OD^2 /4)−(ID^2 /4))/t

L is the roll length

OD is the outer diameter

ID is the inner diameter

t is the thickness (ความหนา)

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Find thickness from diameter and length

$$t = π*\frac{(OD^2 /4)−(ID^2 /4)}{L}$$

t=π*[(OD^2 /4)−(ID^2 /4)]/L

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Find outer diameter from inner diameter, thickness and length

$$OD = \sqrt{(\frac{Lt4}{Pi})+(ID^2)} $$

OD=sqrt((Lt4/Pi)+(ID^2))

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Find inner diameter from outer diameter, thickness and length

$$ID = \sqrt{(OD^2)-(\frac{Lt4}{Pi})} $$

ID=sqrt((OD^2)-(Lt4/Pi))

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Find circumference from radius

$$C = 2πr$$

C=2πr

r=radius (รัศมี) C=Circumference (เส้นรอบวง)

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Find diameter from circumference

$$D = \frac{C}{π}$$

D=C/π

D=Diameter (เส้นผ่านศูนย์กลาง)

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Find round from radius

$$Round = \frac{InRa-OuRa}{t}$$

Round=(InRa-OuRa)/t

Round (จำนวนรอบ)

InRa = inner radius

OuRa = outer radius

t = thickness

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