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Search and browse all 29 Forge calculators by technical discipline.
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Automotive · 8
Electrical · 5
RF · 3
Mechanical · 5
Fabrication · 2
Machining · 4
3D Printing · 1
General · 1
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Automotive
· 8 tools
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Wheel Fitment Calculator
Compare wheel widths, offsets and spacer effects.
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Tyre Size Calculator
Compare tyre diameter, sidewall and speedometer change.
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Gear Ratio / RPM Calculator
Relate road speed, engine RPM and drivetrain ratios.
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Power-to-Weight Calculator
Calculate hp, PS and kW per tonne or reverse a target ratio.
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Engine Displacement Calculator
Calculate engine capacity from bore, stroke and cylinder count.
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Fuel Economy Converter
Convert UK MPG, US MPG, L/100 km and km/L.
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Compression Ratio Calculator
Calculate static compression ratio from detailed engine geometry.
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Mean Piston Speed Calculator
Calculate mean piston speed from engine stroke and RPM.
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Electrical
· 5 tools
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Voltage Drop Calculator
Estimate voltage loss across cable runs.
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Ohm’s Law Calculator
Calculate voltage, current, resistance and power.
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Battery Runtime Calculator
Estimate useful runtime from capacity and load.
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LED Resistor Calculator
Size a series resistor and wattage for an LED string.
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Resistors in Series & Parallel Calculator
Calculate equivalent resistance for series and parallel networks.
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RF
· 3 tools
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Frequency & Wavelength Calculator
Convert frequency, wavelength and common wave fractions.
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dBm ↔ Watts Converter
Convert RF power between dBm, milliwatts, watts and kilowatts.
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Quarter-Wave Antenna Calculator
Calculate theoretical antenna lengths from RF frequency.
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Mechanical
· 5 tools
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Hydraulic Cylinder Force Calculator
Calculate extension and retraction force from bore and pressure.
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Pulley & Belt Ratio Calculator
Calculate belt-drive speed ratios and required pulley sizes.
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Pipe Flow & Velocity Calculator
Relate pipe diameter, volumetric flow and fluid velocity.
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Thermal Expansion Calculator
Estimate material length change across a temperature range.
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Beam Deflection Calculator
Estimate elastic deflection for common beam and load cases.
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Fabrication
· 2 tools
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Material Weight Calculator
Estimate stock weight from material and dimensions.
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Bolt Circle & PCD Calculator
Generate coordinates for evenly spaced holes on a PCD.
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Machining
· 4 tools
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Tap Drill Calculator
Find tapping drills for metric, UNC and UNF threads.
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Speeds & Feeds Calculator
Calculate machining RPM, feed rate, surface speed and chip load.
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Drill Size Converter
Match metric, fractional, number and letter drill sizes.
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Thread Pitch / TPI Converter
Convert metric thread pitch, TPI and reciprocal pitch values.
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3D Printing
· 1 tool
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3D Print Cost Calculator
Estimate filament, energy and machine costs.
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General
· 1 tool
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Engineering Unit Converter
Convert common workshop and engineering units.
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