Manufacturing & Machining

Brinell Hardness Calculator

Calculate Brinell hardness number (BHN), applied load, or indentation diameter using the BHN = 2P / [πD(D - √(D² - d²))] formula.

Bolt Circle Calculator

Calculate bolt hole coordinates on a circular pattern from radius, hole count, and first hole angle for machining and CAD.

Bolt Torque Calculator

Calculate bolt tightening torque or clamping force from bolt diameter, material constant, and lubrication factor.

Carbon Equivalent Calculator

Calculate carbon equivalent CE (AWS, IIW, JWES) and Pcm from alloy steel composition for weldability assessment.

Clearance Hole Calculator

Calculate clearance hole diameter from fastener and head size, with ASME metric and inch drill size charts.

Countersink Depth Calculator

Calculate countersink hole depth from surface diameter and cone angle for flush screw heads in wood and metal.

K Factor Calculator

Calculate sheet metal K-factor, neutral axis location, and bend allowance from material thickness, bend angle, and inner radius.

Material Removal Rate Calculator

Calculate material removal rate for turning, milling, grooving, drilling, and grinding operations.

Pitch Diameter Calculator

Calculate basic, maximum, and minimum pitch diameters for ISO metric external and internal threads with tolerance grades.

Punch Force Calculator

Calculate the force needed to punch holes in sheet metal. Enter hole perimeter, material thickness, and material type to get punching force in Newtons or tons.

Rivet Size Calculator

Calculate the correct rivet shank diameter and length based on plate thicknesses and rivet application.

Spindle Speed Calculator

Calculate spindle speed (RPM) and feed rate for milling, lathe, and CNC machining operations based on cutting speed, diameter, and tool parameters.

Taper Calculator

Calculate taper dimensions including taper per inch, taper per foot, and taper angle. Free online taper calculator for machining and engineering applications.

Thread Calculator

Calculate metric thread dimensions including major diameter, minor diameter, pitch diameter, and tolerance limits. Free online thread calculator for ISO metric fasteners.

Thread Pitch Calculator

Calculate thread pitch, threads per inch, and related thread dimensions for metric and imperial fasteners. Free online thread pitch calculator.

Tonnage Calculator

Estimate the weight in tons of construction aggregates like gravel, sand, crushed stone, and more based on area, depth, and material type.

True Position Calculator

Calculate true position tolerance for GD&T applications with bonus tolerance for MMC and LMC material conditions.

Welding Calculator

Calculate welding electrode consumption, filler metal weight, and welding costs for your fabrication projects.

Hardness Conversion Calculator

Convert steel hardness between Brinell (HB), Rockwell C (HRC), Rockwell B (HRB), and Vickers (HV) scales using standard conversion tables.

Lead Time Calculator

Calculate manufacturing, order, and supply chain lead time from pre-processing, production, and delivery stages with instant results.

Slack Time Calculator

Calculate slack time (float) for project tasks using earliest/latest start and finish dates to optimize project schedules.

3D Printer Buy vs Outsource Calculator

Compare the cost of buying a 3D printer versus outsourcing your 3D printing needs to determine the most cost-effective option.