Precision Math & Conversion Grids
Verified high-accuracy reference grids for engineering, machining, and technical design.
Fraction to Decimal
1/64" increments to decimal equivalents and millimeter results. High-precision machining standard.
View Grid → Updated New DataInches to Millimeters
Instant conversion grid for imperial to metric shifts. Accurate to 4 decimal places.
View Grid → Soon ISO GlobalMetric Bolt Classes
Strength ratings and torque specs for ISO 8.8, 10.9, and 12.9 fasteners.
Coming Soon SoonCelsius to Fahrenheit
Precise temperature conversion grid for industrial processes and scientific reference.
Coming Soon SoonKilograms to Pounds
Mass conversion for shipping, manufacturing, and raw material sourcing.
Coming Soon UpdatedDrill Bit Sizes
Complete mapping of Fractional, Letter, and Number drill bits to decimal sizes.
View Grid →Tap & Drill Chart
Recommended drill sizes for standard (UNC/UNF) and metric threads.
Coming Soon SoonThread Pitch Reference
TPIs (Threads Per Inch) and Metric Pitch equivalents for fasteners.
Coming Soon SoonSheet Metal Gauges
Thickness reference for Steel, Aluminum, and Galvanized sheets.
Coming SoonAWG Wire Size Grid
American Wire Gauge to diameter (mm/inch) and ampacity ratings.
Coming Soon SoonPipe Size & Schedule
Nominal Pipe Size (NPS) vs. Actual Outside Diameter and wall thickness.
Coming SoonMaterial Density Grid
Weight-per-volume reference for common metals, woods, and plastics.
Coming Soon SoonTorque Conversion
Newton-Meters (Nm) to Foot-Pounds (ft-lb) grids for mechanical specs.
Coming Soon