Room Axial Modes Calculator
Fill in the values and the answer updates as you type.
How the Room Axial Modes Calculator works
The first axial mode along a dimension is 343 ÷ (2 × length), using 343 m/s for the speed of sound at about 20 °C. Whole multiples of each frequency also resonate. Bass notes near these frequencies sound boomy or vanish in some spots. When two modes sit within a few hertz of each other, the buildup is stronger, so dimensions that avoid close or equal ratios work better for studios. Tangential and oblique modes are not included. Example: with Room length 5 m, Room width 4 m, and Room height 2.7 m, the result is Length mode (Hz) = 34.3; Width mode (Hz) = 42.9; Height mode (Hz) = 63.5.
Inputs and results
The Room Axial Modes Calculator takes 3 inputs and gives 5 results.
What you enter
- Room length (m) — starts at 5.
- Room width (m) — starts at 4.
- Room height (m) — starts at 2.7.
What you get
- Length mode (Hz)
- Width mode (Hz)
- Height mode (Hz)
- Smallest gap between the three (Hz)
- Room volume (m³)
Example: Room Axial Modes Calculator with the starting values
With room length 5 m, room width 4 m and room height 2.7 m, the calculator returns:
| Length mode (Hz) | 34.3 |
|---|---|
| Width mode (Hz) | 42.9 |
| Height mode (Hz) | 63.5 |
| Smallest gap between the three (Hz) | 8.6 |
| Room volume (m³) | 54 |
Change any value above and the results update straight away.
Room Axial Modes Calculator FAQ
How do I use the Room Axial Modes Calculator?
Enter room length, room width and room height in the fields, then read length mode (hz), width mode (hz), height mode (hz) and smallest gap between the three (hz) in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Room Axial Modes Calculator calculate?
Lowest standing-wave frequencies for a room's length, width, and height. It returns length mode (hz), width mode (hz), height mode (hz) and smallest gap between the three (hz) from the 3 values you provide.
What values does the Room Axial Modes Calculator start with?
It opens with room length 5 m, room width 4 m and room height 2.7 m so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Room Axial Modes Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Room Axial Modes Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.