Specialized Equipment & Sizing Utilities

Zero fluff, no-login engineering calculators designed for Field Mechanics, Woodworkers, RVers, Fabricators and DYI Projects.

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🚛 Towing, RV, 4x4 & Marine Sizing

⚡ Power, Water & Agricultural Systems

Backup Power

Standby Generator & Transfer Switch Sizer

Calculate central A/C compressor LRA starting surge, soft-starter mitigation, continuous running kW, and 30A vs. 50A inlet box requirements.

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Homestead Water

Solar Submersible Well Pump & PV Sizer

Compute Total Dynamic Head (TDH), Hazen-Williams pipe friction loss, required GPM flow, DC bus voltage, and solar array wattage footprints.

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Irrigation & Lawn

Lawn Sprinkler Zone Flow & Friction Sizer

Convert bucket tests into usable GPM, calculate pipe friction pressure drop (PSI), check water hammer limits, and size head counts per zone.

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Mobile Lithium Power

Alternator DC-to-DC Charger & LiFePO4 Sizer

Calculate maximum safe alternator thermal charging amps, driving recharge hours for LiFePO4 house banks, and required AWG wire and ANL fuse sizes.

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Ranch & Livestock

Electric Fence Energizer (Joules) & Ground Sizer

Determine required Output Joules for multi-wire perimeters, heavy wet weed loads, livestock coat shock voltage (kV), and 6-ft ground rod counts.

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Farm & Livestock

Barn Ventilation CFM & Intake Louver Sizer

Calculate seasonal livestock ventilation CFM, summer heat abatement ACH, winter moisture exchange, fan package diameters, and intake louver Net Free Area.

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Off-Grid LP Gas

Propane Tank Winter Vaporization & 2-Stage Regulator Sizer

Calculate liquid propane vaporization limits down to -20°F at 20% fill, prevent tankless heater freeze-outs, and size 2-stage regulators and CSST gas lines.

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Solar PV Sizing

Solar MPPT Sub-Zero String Voltage (Voc) Sizer

Calculate cold-temperature Voc voltage spikes down to sub-zero winter extremes, max series panel count per string, and charge controller overvoltage safety margins.

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⚙️ Fabrication, Machinery & PC Cooling

Hydraulics

Hydraulic Ram Force & Pump GPM Sizer

Size log splitter rams and shop presses: calculate required bore diameter for target tonnage, cycle extension times, and engine shaft HP.

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Woodworking

Cyclone Dust CFM & Static Pressure (SP)

Calculate ACGIH machine port capture CFM, spiral duct friction loss (in. WG), and required cyclone motor impeller horsepower.

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CNC Routing

Desktop CNC Speeds, Feeds & Chip Load

Calculate optimal feed rate (IPM), plunge rate, router dial RPM, depth of cut, and chip load tailored for desktop CNC rigidity limits.

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Custom PC Hardware

Custom PC Water Cooling Radiator & Pump Sizer

Calculate CPU/GPU thermal load (Watts), required copper radiator surface area at a 10°C Delta-T, fan static pressure, and D5 vs. DDC pump head.

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Sauna & Electrical

Sauna Electric Heater kW & Rock Mass Sizer

Calculate Finnish thermal cubic foot adjustments for glass and tile, electric heater kW, rock stone mass, 240V breaker wiring, and bench safety clearance.

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Garage Door Hardware

Garage Door Torsion Spring Wire & Cycle Sizer

Calculate exact garage door torsion spring wire diameter, active coil length, IPPT balance rating, installation quarter-turns, and 10k/25k/50k cycle upgrades.

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Shop Pneumatics

Air Compressor CFM, Tank & Duty Cycle Sizer

Calculate continuous CFM delivery at 90 PSI, 60/80-gallon tank buffer storage, true motor horsepower, and 1-stage vs. 2-stage pump duty ratings.

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Optics & Cinema

Projector Throw Distance & Screen Gain Sizer

Calculate optical lens throw ratio, image width and height, screen brightness in Foot-Lamberts (fL) and nits, minimum ANSI lumens, and ALR screen gain matching.

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🛠️ Trade, Commercial & Equipment Maintenance

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