Plan groove geometry with fast metric seal calculations. Check squeeze, stretch, and gland fill quickly. Export neat results for design reviews and workshop records.
| O Ring ID (mm) | Cross Section (mm) | Squeeze (%) | Max Fill (%) | Groove Depth (mm) | Groove Width (mm) | Actual Fill (%) |
|---|---|---|---|---|---|---|
| 12.00 | 2.40 | 18.00 | 85.00 | 1.9680 | 2.8396 | 80.95 |
| 20.00 | 3.50 | 20.00 | 85.00 | 2.8000 | 4.3720 | 80.95 |
| 35.00 | 5.30 | 22.00 | 82.00 | 4.1340 | 7.2436 | 77.36 |
This calculator uses practical groove sizing math for quick estimates.
These results are design estimates. Final dimensions should still be checked against your material grade, operating pressure, thermal movement, and the standard you follow.
A metric O ring groove calculator helps you size the gland before machining starts. Good groove math improves sealing, limits friction, and protects service life. Poor groove size can cause leakage, twisting, or early wear. This tool gives quick estimates in millimeters for daily design work.
The calculator focuses on groove depth, groove width, squeeze, and gland fill. These values shape how the seal behaves after installation. The tool also estimates installed inner diameter and outer diameter. That helps when you review stretch and fit before production.
Too little squeeze may lower contact pressure. Too much squeeze can increase drag and damage the seal. Gland fill also matters. If fill is too high, the groove may not leave enough free volume for thermal growth, swell, or pressure changes. A balanced design gives stable sealing and easier assembly.
This metric O ring groove calculator is helpful for piston glands, rod glands, and face seal layouts. It supports quoting, workshop planning, seal replacement, and drawing reviews. Engineers, machinists, maintenance teams, and students can all use the same math structure.
The calculator starts with O ring cross sectional area. It then applies squeeze, swell allowance, gland fill target, and a width allowance. The output gives a recommended groove width and groove depth. This makes the design process faster and more consistent.
Seal design still depends on material hardness, pressure, temperature, speed, and surface finish. Standards and supplier tables may ask for slightly different values. Use this tool as a strong starting point. Then compare the result with your drawing rules and application limits.
It returns estimated groove depth, groove width, squeeze amount, gland fill, free volume, and installed O ring dimensions in millimeters.
Yes. The input and output values are designed for metric dimensions. Enter all sizes in millimeters for consistent results.
Yes. The form includes piston radial, rod radial, and face seal options. They help you organize the design case before review.
Gland fill shows how much of the groove is occupied by the seal. Lower free volume can reduce room for expansion, swell, and pressure effects.
Common values often sit in moderate ranges, but the right number depends on service, motion, pressure, and material. Always confirm with your design standard.
Some elastomers grow in service. Swell allowance helps reserve more groove volume so the seal has room during operation.
No. They are quick design estimates. Final dimensions should be checked against seal material data, tolerances, pressure, and your chosen specification.
They make it easier to save the calculation, share it with a team, attach it to design notes, or keep a simple workshop record.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.