Welding Calculators
Calculate arc heat input (Joules/inch), MIG consumable costs, thermal expansion tolerances, and gas flow rates.
Acetylene Withdrawal Rule
Calculate maximum safe and recommended continuous acetylene withdrawal rates to prevent explosive acetone depletion.
Arc Heat Input
Calculate welding heat input (kJ/in) based on voltage, amperage, travel speed, and process efficiency factors for WPS compliance.
AWS D1.1 Minimum Preheat & Interpass Temperature Calculator
Determine mandatory prequalified minimum preheat and maximum interpass temperatures per AWS D1.1/D1.1M:2020 Clause 5 & Table 5.8 for structural steel welding.
Bend Allowance
Calculate bend allowance, K-Factor offsets, and total flat pattern length for precision sheet metal fabrication.
AWS/IIW Welding Carbon Equivalent Calculator
Determine steel weldability and strict preheat requirements using the International Institute of Welding Carbon Equivalent equation.
Fillet Weld Throat
Calculate the theoretical throat and AWS D1.1 allowable unit force for a fillet weld — determines the allowable shear load per linear inch a weld can safely carry based on leg size and electrode classification.
Gas Cost Estimator
Calculate the hourly operating cost and arc-time duration for welding shielding gas based on cylinder size and flow rate.
Gas Cylinder Duration
Estimate remaining arc time based on shield gas cylinder pressure, capacity, and flow rate (CFH).
Gas Flow
Calculate the correct shielding gas flow rate for MIG and TIG welding based on nozzle size, process type, and environmental conditions.
Heat Input
Calculate true thermal energy transferred into the base metal (Joules per inch) using amperage, voltage, and travel speed. Critical for ASME IX and AWS D1.1 WPS compliance.
Master Weld Consumable
Estimate filler metal poundage and shielding gas volume based on standard joint geometries and welding processes.
Metal Gauge
Instantly convert wire and sheet metal gauges (10 to 30 GA) into exact decimal inches and millimeters across Steel, Stainless, Aluminum, and Galvanized standards.
MIG Deposition
Calculate MIG filler metal deposition rate in lbs/hr from wire diameter and feed speed. Estimate arc-on time and wire consumption for production welding.
MIG Parameter Setup
Calculate precise Voltage and Wire Feed Speed baselines for short-circuit MIG welding on carbon steel based on plate thickness and wire diameter.
Oxy Acetylene
Estimate the volume of Oxygen and Acetylene cylinder gas needed to complete linear cuts through carbon steel based on travel speed and tip size.
Oxy Fuel Heating
Determine thermal BTU requirements and heating durations to preheat or PWHT massive steel components using rosebud oxy-fuel torches.
Pipe Bevel Volume
Determine total weld volume and required pounds of filler wire for open-root single V-groove pipe joints based on wall thickness, diameter, and bevel geometry.
Pipe Saddle Coping
Calculate the exact peak-to-valley cut depth for 90-degree pipe saddles (fishmouth cuts). Essential for pipe fabricators and welders to ensure a perfect fit.
Thermal Expansion
Calculate dimensional expansion or contraction of solid materials subjected to temperature variations.
TIG Cup Stickout
Calculate the exact maximum tungsten stick-out and recommended argon flow rate for any TIG gas cup number and joint type using the 1/16-inch rule.
TIG Gas Lens Flow
Optimize argon flow rates and maximum tungsten stick-out for TIG welding using gas lenses vs standard collets, with joint-type adjustments.
TIG Tungsten Amperage
Look up the strict minimum and maximum amperage boundaries for GTAW/TIG welding based on tungsten diameter, alloy composition, and current polarity.
Weld Cooling Rate
Calculate the critical t8/5 cooling time for thick-plate steel welds per EN 1011-2 to predict weld microstructure and prevent hydrogen-induced cold cracking.
Weld Cost
Calculate total fabrication welding costs combining labor time, filler wire deposition rates, shielding gas flow, and operating factor to find cost per foot of weld.
Weld Deposition
Calculate theoretical welding deposition rates, filler metal volume, and required arc time based on joint dimensions and wire feed speed.