The Engineer's Toolkit

Fast & Accurate Chemical Engineering Calculations

Your go-to resource for reliable online calculators, for all your essential process and plant design needs. Built by engineers, for engineers.

Trusted by 5,000+ users worldwide every single day.
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Liquid Orifice Plate Sizing & Rating

Calculation for Liquid Orifice Plate Sizing & Rating based on ISO 5167 & ASME MFC-14M standards.

Why CheCalc?

A resource built for the modern engineer.

Accurate & Reliable

Based on established literature and developed by experienced chemical engineers to ensure reliable results every time.

Modern & Accessible

A clean, responsive interface that works flawlessly on any device, from your office desktop to the plant floor mobile.

Community Resource

Built for the community. Our core tools remain openly available for students, researchers, and professionals alike.

Need a Custom Enterprise Solution?

Beyond our standard tools, we develop proprietary, secure calculators tailored to your plant's specific processes.