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Engineering & Power Tools

Engineering and power tools for first-pass checks involving loads, pressure, tanks, safety factors, circuits, batteries, solar sizing, energy, and mechanical estimates.

Start with these tools

Use this category for quick engineering screening where units, boundary conditions, material assumptions, and safety margins need to stay visible.

Common workflow

  1. Confirm units, geometry, material data, voltage, load, or environmental assumptions.
  2. Run a first-pass calculation and check whether the result is physically plausible.
  3. Validate consequential work against datasheets, standards, measurements, or qualified review.

Related collections

Full Engineering & Power tool list

Gauge + Barometric to Absolute Pressure Calculator

Convert gauge and barometric pressure to absolute pressure.

Vertical Cylindrical Tank Contents Calculator

Calculate liquid volume in vertical cylindrical tanks.

Battery Bank Capacity Calculator

Calculate required usable and total battery capacity.

Beam Deflection Calculator

Estimate max deflection for a simply-supported beam with center load.

Charge Controller Sizing Calculator

Size MPPT or PWM charge controllers for safe operation.

Electrical Power Calculator

Solve power, voltage, or current from P = V * I.

Fluid Depth, Density, Gravity & Pressure Calculator

Solve for any variable in the hydrostatic equation P = ρgh.

Horizontal Cylindrical Tank Contents Calculator

Calculate liquid volume in horizontal cylindrical tanks.

Inverter Sizing Calculator

Determine recommended inverter continuous and surge ratings.

Liquid Level to Hydrostatic Pressure Calculator

Calculate hydrostatic pressure from liquid level.

Pressure to Liquid Level Calculator

Calculate liquid level from pressure measurement.

PV Stringing Helper

Analyze series and parallel solar panel configurations.

Rectangular Tank Contents Calculator

Calculate liquid volume in rectangular tanks.

Reynolds Number Calculator

Estimate fluid flow regime using Reynolds number.

Safety Factor Calculator

Calculate safety factor from material strength and working stress.

Solar Array Size Calculator

Calculate required PV array size and panel count.

Solar Charge Time Estimator

Estimate hours to reach target battery state of charge.

Specific Impulse (Isp) Calculator

Calculate Specific Impulse (Isp) for rocket engines.

Thermal Expansion Calculator

Calculate linear expansion from alpha, temperature change, and length.

Torque Calculator

Calculate torque from force, lever arm, and angle.

Voltage Divider Calculator

Compute output voltage for two-resistor divider circuits.

FAQ

What are Engineering & Power tools useful for?

They handle focused engineering & power tasks where a single-purpose page is faster than a spreadsheet or full application.

How many tools are in this collection?

This category currently includes 21 focused tools, with the most practical starting points shown first.