CFM Calculator: Enclosure Cooling & Room Airflow
Calculate enclosure cooling CFM and room air changes with fan sizing margin recommendations.
Industrial & ElectricalDual Mode · Fan Sizing
Toolkits by Role
Industrial Engineers Toolkit
Sizing, verification and engineering calculations — one toolkit for industrial engineers.
134 tools✓ No signup needed
Tools in this kit
Hydraulic hose sizing & flow velocity calculator
Use flow, line type and target velocity to estimate bore by continuity and select from the built-in hose Dash table. Confirm actual bore, working pressure, temperature, fluid and bend radius with the manufacturer.
Industrial & ElectricalDash Sizing · Anti-Cavitation
Wire Size, Ampacity and Voltage-Drop Calculator
Check ampacity and voltage drop together, selecting common sizes under IEC PVC installation methods or NEC insulation and terminal conditions. Supports feet, AWG, power factor and maximum length.
Industrial & ElectricalIEC & AWG · Voltage Drop Check
Fan Affinity Laws & Sizing Calculator
Scale fan CFM, static pressure and motor brake horsepower across RPM speed variations and geometrically similar impellers using aerodynamic affinity laws.
Industrial & ElectricalAffinity Laws · Speed & Power Scaling
Industrial & Hydraulic Fitting Thread Identifier
Identify and match NPT, BSPP (G), BSPT (R), JIC 37°, ORFS and Metric DIN 2353 threads using caliper diameter and pitch/TPI readings.
Industrial & ElectricalThread Gauge Search · Caliper Matcher
Hydraulic Hose Assembly Cut Length & Cut-off Calculator
Input overall length (OAL) or cut length, fitting cut-off factors and dash size to calculate precise cut length, SAE J517 tolerances and pressurized expansion range.
Industrial & ElectricalSAE J517 Tolerance · Cut-off Layout
Hydraulic Dash Size, Pressure & Velocity Converter
Cross-reference hose dash sizes (-02 to -32) with metric ID, fractional inches, and DN sizes; convert pressure (bar/psi/MPa) and evaluate flow velocity.
Industrial & ElectricalDash ID · Pressure & Flow Quick Check
HVAC Duct Friction Loss & Static Pressure Calculator
Input airflow, duct dimensions, length, roughness, and fittings to calculate friction loss, dynamic pressure, and external static pressure (ESP) using Darcy-Weisbach.
Industrial & ElectricalSwamee-Jain Explicit · Static Pressure Waterfall
Fan & Pump Motor Sizing and IEC Frame Sizing Calculator
Input airflow/flow rate, static/total pressure, fan efficiency and drive type to calculate air power, brake horsepower (BHP), IEC motor frame, and full load amps (FLA).
Industrial & ElectricalIEC Frame Sizing · Drive Train
Industrial bearing L10 rated lifespan & lubrication calculator
Calculate ISO 281 L10 and L10m fatigue life hours, service years and recommended lubrication intervals from basic dynamic load ratings, radial and axial forces, operating RPM and lubrication conditions.
Industrial & ElectricalISO 281 Standard · Bearing Life
Equipment noise decibel summation & distance attenuation calculator
Calculate logarithmic sound power summation, hemispherical geometric distance decay, sound pressure level (dBA), silencer attenuation, and OSHA permissible noise exposure durations for industrial fans and pumps.
Industrial & ElectricalLogarithmic Summation · Decay
High altitude & elevated temperature air density derating calculator
Solve for true moist air density and derating factor K_rho across elevation, temperature and relative humidity using the ICAO standard atmosphere model and Tetens vapor equation, calculating CFM compensation and static pressure derating.
Industrial & ElectricalICAO Atmosphere · Moist Air Physics
Hydraulic Cylinder Force, Speed & Power Calculator
Calculate double-acting single-rod hydraulic cylinder bore/rod effective areas, extension thrust, retraction pull, piston velocities, fluid volume and required hydraulic drive pump power using fluid mechanics.
Industrial & ElectricalDouble-Acting Single-Rod · Force & Power
Bolt Tightening Torque & Preload Calculator
Estimate bolt torque and preload with T = K × F × d. Use a strength-based target, a known preload or a known torque; select metric coarse or UNC size, reference strength and an assumed or custom K. Compare nominal axial yield utilisation and available ordinary coarse-thread proof-load references. Full VDI 2230 joint design requires a separate analysis.
Industrial & ElectricalShort-form estimate · forward and inverse
Industrial Pipe Flange Dimensions & Bolt Hole Chart
Look up flange OD, bolt circle, hole count, hole diameter and bolt size for ASME B16.5 Class 150/300, EN 1092-1 PN10/16/25/40 and JIS B2220 10K/20K, DN15–DN300 (NPS 1/2"–12"). ASME inch dimensions are converted to millimetres. Check stud length and torque separately for the actual joint.
Industrial & ElectricalASME / DIN / JIS · Flange PCD Chart
Stepper & Servo Motor Torque and Inertia Ratio Calculator
Apply D'Alembert's dynamic equilibrium and rotational inertia matching principles across ball screws, timing belts and rotary tables. Sizing outputs reflected load inertia JL, inertia ratio JL/JM, transient acceleration torque and continuous motor power ratings with planetary gearbox reduction recommendations.
Industrial & ElectricalD'Alembert Dynamic Equilibrium · Inertia Ratio & Sizing
Pneumatic Cylinder Force & Air Consumption Calculator
Apply Pascal's fluid laws and standard reference conditions (ANR: 20°C / 101.3 kPa). Inputs cylinder bore, rod, stroke, pressure and cycling rate to calculate usable extension thrust, retraction pull, cycle displacement and free air consumption in L/min and CFM with tubing and compressor sizing.
Industrial & ElectricalSMC & Festo Standard · Thrust & Air Sizing
Distribution Transformer Sizing & Economic Load Ratio Calculator
Adhere to IEC 60076 and industrial electrical standards. Inputs connected load, demand factor Kx, uncompensated power factor, target PF, economic load ratio and reserve margin to calculate active load Pjs, capacitor bank Qc, design kVA, IEC standard transformer ratings and secondary ACB circuit breaker sizing.
Industrial & ElectricalIEC & GB Standard · kVA Capacity & Economic Load
Gearbox Ratio & Output Torque Calculator
Calculate speed reducer output RPM, theoretical torque, service factor rating, and overhung radial loads. Inputs motor power, input RPM, gearbox architecture (helical, worm, planetary, bevel), ratio, service factor, and output drive transmission type.
Industrial & ElectricalISO/SEW Standard · Gearbox Torque & Radial Load
Centrifugal Pump Head & Hydraulic Power Calculator
Calculate centrifugal pump total dynamic head, pipe flow velocity, Darcy-Weisbach friction loss, hydraulic power, and motor rating. Inputs design flow rate, static elevation head, pipe length, inner diameter, roughness, fitting count, efficiency, and liquid density.
Industrial & ElectricalDarcy-Weisbach · Pump Head & Power Sizing
Belt Conveyor Friction & Motor Power Calculator
Calculate belt conveyor motion resistances, drive pulley traction Fu, shaft power, and motor rating per ISO 5048 and CEMA standards. Inputs capacity in t/h, length, lift height, belt width, velocity, idler friction factor, and drive efficiency.
Industrial & ElectricalISO 5048 / CEMA · Belt Conveyor Dynamics
Cable Reel Drum Capacity & Gross Weight Calculator
Calculate layer winding turns, total spool length, gross weight, and ocean shipping CBM per IEC 60502 and NEMA WC 26 standards. Inputs flange diameter, drum barrel diameter, traverse width, flange clearance X, cable outer diameter, weight per meter, and reel tare weight.
Industrial & ElectricalIEC/NEMA · Cable Reel Capacity & Volume
Steam Trap Sizing & Condensate Load Calculator
Size steam traps and calculate condensate load per Spirax Sarco and Armstrong engineering standards. Enter steam pressure, heat duty, backpressure, safety factor, and trap type to compute condensate generation, differential pressure, rated discharge capacity, flash steam ratio, and piping guidelines.
Industrial & ElectricalSpirax/Armstrong · Steam Trap Sizing
Plate Heat Exchanger LMTD & Area Calculator
Calculate PHE surface area, LMTD, and plate counts per Alfa Laval and SWEP standards. Enter hot/cold fluid temperatures, duty Q, overall heat transfer coefficient k, and fouling resistance to compute temperature differentials, effective area, chevron plate counts, and mass flow rates.
Industrial & ElectricalAlfa Laval Spec · PHE LMTD & Surface Area