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Convert material cutting speed into spindle RPM, table feed and chip load, then check removal rate, required spindle power and…
Hole and thread math: drill speeds and feeds, tap drill sizes, thread pitch diameters, engagement percentages and thread stress…
Turn a required clamp load into an installation torque and check the joint against tension, shear and thread stripping. Used…
Coordinate and inspection math for setting up and checking parts: bolt hole layouts, sine bar stacks, taper angles, ISO fits…
Size and lay out mechanical power transmission: gear ratios, module and pitch diameters, center distances, chain lengths and…
Flat-pattern and forming math for press brake and stamping work: bend allowance, K-factor, bend deduction, tonnage, punch and…
Weld sizing, strength, consumable and process math following AWS D1.1 conventions: throat and leg dimensions, joint capacity…
Weigh and price the material itself, then check its mechanical properties: shape weights by alloy density, coil geometry, scrap…
Most used in machining, welding & metal fabrication
- Cutting Speed (SFM) CalculatorMachinery's Handbook cutting speed conventionCutting speed is the velocity of the cutting edge relative to the work, and it is the parameter that sets the temperature at…
- Spindle RPM CalculatorMachinery's Handbook cutting speed conventionCutting speed tables are published per material and tool grade, never per machine, so every job starts with the same…
- Milling Feed Rate (IPM) CalculatorMachinery's Handbook milling conventionThis calculator turns the chip load your tooling catalogue publishes into the F word your control actually needs. Feed per…
- Chip Load Per Tooth CalculatorMachinery's Handbook milling conventionThis calculator back-solves the chip load your cutter is actually taking from the three numbers already in your program: feed…
- Material Removal Rate (MRR) CalculatorMachinery's Handbook unit power methodMaterial removal rate is the volume of metal a cut produces per minute, and it is the single number that decides whether a…
- Drilling Speed & Feed CalculatorMachinery's Handbook drilling practiceDrilling needs four numbers and this calculator produces all of them: the spindle speed that puts the outside corner of the…
- Tap Drill Size CalculatorASME B1.1 / ISO 68-1 thread geometryA tap does not cut a thread from nothing — it cuts a thread into a hole, and the hole diameter decides how much of the…
- Bolt Torque CalculatorSAE J429 / ISO 898-1 with the short-form torque equationTorque is not the thing you actually want from a bolt. What holds a joint together is preload — the tension stretched…
- ISO Hole & Shaft Fit Tolerance CalculatorISO 286-1 / ISO 286-2 (hole-basis limits and fits)A drawing that says ø40 H7/g6 is making four separate statements about size, and this calculator unpacks all of them…
- Gear Ratio & Output Speed CalculatorAGMA gear train conventionA gear train trades speed for torque, and the exchange rate is set entirely by tooth counts. This calculator takes up to three…
- V-Belt Length CalculatorClassical and narrow V-belt geometry (Machinery's Handbook)Give this calculator two sheave diameters and a centre distance and it returns the exact belt pitch length from the true wrap…
- Pulley Speed & Ratio CalculatorBelt-drive kinematics (Machinery's Handbook)Enter any three of the four quantities in a belt drive — driver sheave diameter, driver RPM, driven sheave diameter, driven RPM…