EZ Calc Torque Calculator – Bolting Specs Made Easy
EZ Calc by ESI is a precision torque calculator built for the professionals who keep industrial pipelines safe and reliable. Designed with field technicians, bolting engineers, and maintenance planners in mind, it streamlines the most demanding flange joint calculations with speed and accuracy.
Whether you’re validating torque for A193 B7 studs or calculating grip length for a high‑pressure flange, EZ Calc delivers instant, standards‑based results that eliminate guesswork and reduce downtime.
⚙️ What It Does
- Calculates torque values, stud lengths, and fastener specs
- Supports standard and custom flange configurations
- Auto-populates bolt quantity, diameter, and flange thickness from flange lookup
- Accepts user-defined inputs for gasket thickness, K-factor, and yield strength
- Works on any device — no login, no software required
✅ Who Benefits and How
- Field Technicians → Save time in the field with quick, reliable torque values that match real‑world specs.
- Bolting Engineers → Ensure compliance with industry standards while reducing the risk of over‑ or under‑torquing.
- Maintenance Planners → Plan jobs more efficiently with accurate grip length and torque data, improving safety and scheduling.
- Pipeline Operators → Gain confidence that every flange joint is tightened to spec, minimizing leaks and costly failures.
- Industrial Contractors → Deliver projects faster and with fewer errors, boosting client trust and operational efficiency.
🚀 Why ESI’s EZ Calc?
- Fast, mobile-friendly interface for jobsite use
- Accurate torque specs based on flange geometry and material inputs
- Trusted by pipeline teams across refineries, chemical plants, and energy sectors
- Integrated with ESI’s rental and sales workflows for seamless quoting and tool selection
Looking for recommendations for flange spreaders, alignment tools, nut splitters, or zero gap tools? Go to the Flange Master Tool.
For seal compatability try Enerteq’s SEAL CAL.
EZ Calc Flange & Torque Calculator
SHOW ENGINEERING DISCLAIMER
IMPORTANT: Engineering Disclaimer
This calculator is provided for informational and preliminary estimation purposes only. It is not a substitute for professional engineering analysis, consultation, or final design specifications. Always consult official standards and licensed Professional Engineers.
EZ Calc Flange & Torque Calculator
Input Parameters
e.g., A193 B7 is 105 ksi (724 MPa)
Bolt Geometry Inputs (For Length)
Thickness of a single flange.
Thickness of the compressed gasket.
Results
Calculated Torque (Target) $\mathbf{T}$
--
ft-lbs
Calculated Bolt Load (Target) $\mathbf{F}$
--
lbs
Recommended Installation Tool
--
Based on calculated torque capacity
Bolt Geometry
Calculated Grip Length ($G$)
--
The total thickness of the clamped materials (in).
Recommended Bolt Length ($L$)
--
Standard bolt length to nearest $1/4$ inch (in).
Formulas Used:
Torque: $T = \frac{K \cdot D \cdot F}{12}$
Load: $F = A_t \cdot \sigma_{\text{target}}$
Grip Length: $G = (2 \times T_{flange}) + T_{gasket}$
Bolt Length: $L = G + 1.5 \cdot D \quad (\text{rounded up})$
🏭 Why Rent and Buy with ESI?
ESI Flange Spreader Rentals is the trusted source for flange maintenance tools across North America. Whether you’re managing a refinery turnaround, pipeline repair, or routine flange alignment, ESI delivers the tools, speed, and expertise your team needs to stay productive and safe.