Why enter left and right angles?

Left-right comparison helps flag tilted baselines, droplet distortion, or inconsistent fitting.

It is the absolute difference between left and right contact angles.

Does this extract angles from images?

No. Enter measured angles from image analysis or a goniometer.

ToolsConductScience tool

SurfaceFree in-browser calculator

Contact Angle Calculator.

Average left and right contact angles and check droplet symmetry. For materials research, education, and protocol documentation only. Not a certified inspection, compliance, asset-integrity, or final acceptance tool.

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Validated2026-05-24

CitableMethods and citation included

Calculator

Results update in place

Try it out

Load example contact angle data to see the full workflow

Contact Angle inputs

Left angle

deg

Right angle

deg

Results

Average angle

77.5 deg

Asymmetry

3 deg

Left

Right

Average

77.5

Review notes

Baseline selection, evaporation, roughness, and contamination can shift contact-angle results.

Methods note

Averages left and right sessile-drop angles and reports the absolute difference.

Scope and limitations

For materials research, education, and protocol documentation only. Not a certified inspection, compliance, asset-integrity, or final acceptance tool.

Results are deterministic calculations from the values entered here. Review units, assumptions, and measurement quality before using outputs in reports or protocols.

Method

Uses the tool-specific formulas and assumptions shown in the calculator output.

Validated

Last validated 2026-05-24. Calculations are designed for planning and documentation support; verify procurement decisions against manufacturer specifications or institutional SOPs.

How to cite

How to Cite

Contact Angle Calculator (1.2.0). ConductScience, Inc. 2026. Available at: https://conductscience.com/tools/contact-angle-calculator

For materials research, education, and protocol documentation only. Not a certified inspection, compliance, asset-integrity, or final acceptance tool.

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