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Formulas & Calculations
Cylinder Capacity in Gallons and Cubic Feet: Full Guide
Cross-unit decision guide for cylindrical capacity: when to specify in gallons vs cubic feet, industry standards, density differences, and conversion tables.
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Timber & Wood Calculation
Volume of Round Timber Logs: Smalian and Huber Formulas
Calculate log volume using forestry formulas: Huber, Smalian and Doyle methods. Enter small-end diameter, large-end diameter and length for board feet.
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Formulas & Calculations
Volume of a Cylinder Using Diameter: V = pi d2 h over 4
Master cylinder diameter calculations and avoid the five most common mathematical and physical measuring mistakes on pipes, tanks, and columns.
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Guides
Hydraulic Cylinder Rod Volume: Annular Area and Fluid Math
Calculate hydraulic cylinder extend vs retract displacement. Subtract rod volume (pi r squared stroke) from bore volume for accurate pump sizing.
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Guides
Wire Spool Volume: Formula, Cable Length and Weight Guide
Calculate wire on a spool using hollow cylinder volume: V = pi h times R squared minus r squared. Convert spool capacity into total cable feet.
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Guides
Steel Coil Volume Calculation: Outer, Inner Diameter, Weight
Calculate steel coil volume with V = pi over 4 times OD squared minus ID squared times width. Convert volume to weight in kg and lbs using 7.85 g/cm3.
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Guides
Pipe Insulation Volume: Formula and Linear Feet Guide
Calculate insulation volume on pipes using hollow cylinder math: V = pi L times R squared minus r squared. Works for fiberglass and foam in cubic feet.
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Guides
Transformer Cylindrical Tank Oil Capacity: Sizing Formulas
Calculate transformer tank oil volume in litres and gallons. Uses V = pi r squared h with temperature expansion factors for conservator tank sizing.
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Guides
Industrial Silo Volume Calculator: Bushels, m3 and Tons
Calculate farm and industrial silo storage capacity. Combines cylinder body and cone hopper volume to get cubic feet, cubic metres, bushels and tons.
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Guides
Partially Filled Tilted Cylinder: Volume at Any Angle
Calculate liquid volume in a tilted cylindrical tank. Combines tilt angle, liquid depth and radius with calculus slice integration for exact litres.
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Guides
Water Volume in a Half Pipe: Channel Flow and Capacity
Calculate water volume in half-round pipes and open culverts using V = 0.5 pi r squared L. Get litres, gallons and flow area for drainage channels.
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Tank Calculation
Horizontal Tank Dip Stick Chart: Inches to Gallons Math
Calculate liquid volume in a horizontal cylinder from dip stick depth. Uses circular segment geometry to get exact gallons and litres at any fill level.
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