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 the correct clearance hole diameter from screw or bolt size and head type, then match it to ASME metric and inch drill size charts. Free, no signup.

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, drilling, grooving, and grinding. Enter cutting parameters for instant MRR results in your browser.

Pitch Diameter Calculator

Calculate basic, maximum, and minimum pitch diameters for ISO metric external and internal threads. Pick tolerance grades, get fast, free results instantly.

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

Estimate welding electrode consumption, filler metal weight, and total welding costs for fabrication projects. Free online tool with no signup, instant results.

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.

Roll Length Calculator

Calculate the length of material on a roll using outer diameter, inner diameter, and material thickness. Perfect for toilet paper, tape, paper, fabric, and other rolled materials.

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.

Flange Size Calculator

Find recommended breast pump flange size from nipple diameter measurements.

3D Printing Cost Calculator

Estimate 3D printing costs from filament weight, material type, print time, hourly rate, and markup with instant price breakdown.

DPMO Calculator

Calculate DPMO, sigma level, DPU, and PPM from defects, units, and defect opportunities for Six Sigma quality analysis.

Takt Time Calculator

Calculate takt time from available production time and customer demand to balance your manufacturing line.

Bend Allowance Calculator

Calculate bend allowance and bend deduction for sheet metal bending using inside radius, angle, and material thickness.

Impact Test Calculator

Calculate absorbed impact energy for Charpy and Izod pendulum tests from mass, drop height, and specimen dimensions.

Rockwell Hardness Conversion Calculator

Convert between Rockwell hardness scales and other hardness testing standards

Speeds and Feeds Calculator

Calculate spindle RPM, feed rate, and surface speed for milling, turning, and drilling operations.

Vickers Hardness Number Calculator

Calculate Vickers hardness (HV) from applied force and indentation diagonal length with step-by-step formulas.

Concentricity Calculator

Evaluate concentricity tolerance between cylindrical features for machining and quality inspection.

Runout Calculator

Check circular runout tolerance for rotating parts using indicator readings and specification limits.