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Free engineering tools built by the Instranova instrumentation team. Each one solves a question we answer daily at the selection desk, using the same equations and product data we use for real quotes. No sign-up, no download; results appear as you type.
Available tools
Enter your medium, pipe size, range, and process conditions; get a ranked shortlist of matching instruments across flow, level, pressure, temperature, density, and torque, with fit badges for every parameter.Flow Rate from Pressure Calculator
Convert a differential pressure reading to flow: orifice equation with velocity-of-approach factor, square-root rescaling, and valve Cv modes, in SI and US units.4-20 mA Signal Calculator
Convert a 4-20 mA signal to the process value and back for pressure, level, temperature, and flow ranges, with a square-root mode for DP flow elements and a percent and 1-5 V conversion chart.Absolute & Gauge Pressure Converter
Convert gauge pressure to absolute pressure and back in kPa, bar, psi and MPa, with an altitude-based atmospheric pressure estimate and vacuum handling built in.
Pipe Velocity Calculator
Velocity from flow rate and pipe inner diameter, flow from velocity, or the minimum pipe size for a velocity limit, in metric and US units.Hydrostatic Pressure Calculator
Pressure to liquid level or depth, level to pressure, and level from a 4-20 mA reading, with SG presets for water, seawater, and diesel.Flow Meter K-Factor Calculator
Flow rate from pulse frequency and K-factor, K-factor from a pulse count and volume, or a corrected K from a proving run.
More calculators are on the way, covering hydrostatic level and the unit conversions we get asked about most. If you need a calculation that is not here yet, ask our application engineers and we will run it for you.
Background reading
Every tool links back to a guide that explains the underlying method. Start with the flow rate and pressure relationship guide for the formulas behind the pressure-to-flow calculator, read how a 4-20 mA current loop works for the signal calculator, or browse our product range when you already know what you need.
Request a quote
Tools narrow the choice; a quote settles it. Send your medium, line size, range, and process conditions and our application engineers will return a sized, documented configuration.