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ENEnglish繁中繁體中文ESEspañolARالعربيةFRFrançaisITItalianoPTPortuguêsRUРусскийDEDeutschJA日本語VITiếng ViệtKO한국어THไทยTRTürkçe

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Engineering Calculator · 058

Cable to Seal Opening Area Ratio Calculator

Compare circular cable area with circular seal opening area and report the area ratio without inferring sealing force.

Seal geometry
Start calculationReview the method

Live calculation

Enter the known values.

Units remain visible beside every field and result. Change any input to recalculate immediately in your browser.

01

Inputs

02

Results

Cable area254.47mm²
Opening area213.82mm²
Cable-to-opening area ratio119.01%

Formula
RA,c/s=Dc2Ds2 100%R_{A,c/s}=\frac{D_c^2}{D_s^2}\,100\%

The calculation runs locally in this browser. Values are not submitted or stored by this tool.

Direct answer

What this result means

Compare circular cable area with circular seal opening area and report the area ratio without inferring sealing force. The relationship RA = Dc² / Ds² × 100% ties cable outside diameter and seal opening diameter directly to the reported result. Cable and opening are circular and coaxial. Treat the value as a transparent preliminary calculation, then compare it with the actual cable-entry assembly and current product documentation.

Cable to Seal Opening Area Ratio Calculator engineering relationship diagramRA = Dc² / Ds² × 100% defines the calculation shown here. Cable and opening are circular and coaxial. Keep the entered units with the result so another reviewer can reproduce the method. This dedicated schematic represents cable seal area ratio and is not to scale.AREA RATIO · TOOL 058Cable outside diameterCable area
Calculator-specific engineering relationship diagram — schematic, not a product drawing, and not to scale.

Formula & theory

Make the assumptions visible.

RA = Dc² / Ds² × 100% defines the calculation shown here. Cable and opening are circular and coaxial. Keep the entered units with the result so another reviewer can reproduce the method.

Calculation relationship
RA,c/s=Dc2Ds2 100%R_{A,c/s}=\frac{D_c^2}{D_s^2}\,100\%

RA = Dc² / Ds² × 100% defines the calculation shown here. Cable and opening are circular and coaxial. Keep the entered units with the result so another reviewer can reproduce the method.

Variables

DsSeal opening diametermm
RACable-to-opening area ratio%

Use sequence

From measurement to review

  1. Confirm cable outside diameter and seal opening diameter from a controlled drawing, measurement or project document.
  2. Apply RA = Dc² / Ds² × 100% with consistent units and keep the entered values beside the result.
  3. Use cable area only after checking the manufacturer’s sealing range, material deformation, cable profile and dimensional tolerance.

Limits

What this calculation does not confirm

  • Cable and opening are circular and coaxial.
  • Inputs describe one defined operating or measurement condition and use mutually consistent units.
  • The result does not by itself confirm product suitability, standards compliance, ingress performance or installation approval.

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Calculator FAQ

Use the number without losing the engineering context.

These answers clarify what the tool calculates and where a product-specific review still begins.

01Calculator guidanceHow does the cable to seal opening area ratio calculator calculate cable area?

The tool applies RA = Dc² / Ds² × 100% to cable outside diameter, seal opening diameter. Cable and opening are circular and coaxial. Keep the displayed units with the result so the calculation can be repeated.

02Calculator guidanceWhat does cable area show for this area ratio review?

Compare circular cable area with circular seal opening area and report the area ratio without inferring sealing force. It is a preliminary engineering value, not confirmation of a cable-gland model, standards compliance or installation approval.

03Calculator guidanceWhat should be checked about the manufacturer’s sealing range before using the cable to seal opening area ratio calculator result?

The equation does not model the manufacturer’s sealing range, material deformation, cable profile and dimensional tolerance. Confirm those conditions against the actual cable-entry assembly, applicable requirement and current product documentation.

Product selection support

Connect the calculation with cable-entry product options.

Bepto Cable Glands can help relate a preliminary result to the product family and current model information for your application. You can start with the details you have; a complete drawing package is not needed to ask a question.

Request product support