Mini Tools Collection
Useful one-page tools for real work
ToolPatch is a growing collection of focused utilities. Each page handles one task with clear inputs, fast results, and practical outputs.
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Industrial
Featured
Fluid Depth, Density, Gravity & Pressure Calculator
Solve for any variable in the hydrostatic equation P = ρgh.
Universal hydrostatic calculator. Enter any 3 values (depth, density, gravity, pressure) to solve for the 4th using P = ρgh.
Industrial
Featured
Gauge + Barometric to Absolute Pressure Calculator
Convert gauge and barometric pressure to absolute pressure.
Calculate absolute pressure from gauge and barometric readings: P_abs = P_gauge + P_barometric.
Industrial
Featured
Horizontal Cylindrical Tank Contents Calculator
Calculate liquid volume in horizontal cylindrical tanks.
Determine liquid volume from depth in horizontal cylindrical tanks using circular segment geometry. Essential for fuel storage and process tanks.
Industrial
Featured
Liquid Level to Hydrostatic Pressure Calculator
Calculate hydrostatic pressure from liquid level.
Convert liquid level to pressure using P = ρgh. Essential for tank pressure calculations and sensor calibration.
Industrial
Featured
Pressure to Liquid Level Calculator
Calculate liquid level from pressure measurement.
Convert pressure readings to liquid level height using hydrostatic formula h = P/(ρg). Useful for tank level monitoring and process control.
Industrial
Featured
Rectangular Tank Contents Calculator
Calculate liquid volume in rectangular tanks.
Determine liquid volume in rectangular tanks from dimensions using V = l × w × h. Ideal for aquariums, pools, and industrial vessels.
Industrial
Featured
Vertical Cylindrical Tank Contents Calculator
Calculate liquid volume in vertical cylindrical tanks.
Compute liquid volume from height in vertical cylindrical tanks using V = πr²h. Perfect for water tanks and storage vessels.