EZ Calc Torque Calculator – Bolting Specs Made Easy
EZ Calc by ESI is a precision torque calculator designed for field technicians, bolting engineers, and maintenance planners working on flange joints across industrial pipelines. Whether you’re validating torque for A193 B7 studs or calculating grip length for a high-pressure flange, EZ Calc delivers instant results based on real-world specs and industry standards.
⚙️ 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
🚀 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
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: $L = G + 1.5 \cdot D \quad (\text{rounded up})$
EZ Calc Flange & Torque Calculator
EZ Calc Flange & Torque
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.
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.