Step 1 — free, DIY, instant

Start here: a free calculation of your room.

Enter your room's dimensions below. In under a minute you'll see your calculated room modes, a room ratio check, and where your low end is likely to be uneven — no account, no payment, calculated instantly by the same engine behind every Studio Music Tools product.

Length

Width

Height

Units: m (toggle below). Interior dimensions, wall to wall.

Units

Room volume

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Room ratio (H:W:L)

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Reference only, not a pass/fail test.

Modes below 300 Hz

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Lowest mode

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Ratios roughly between 1:1.1:1.25 and 1:1.6:2.5 are commonly cited as tending to distribute modes more evenly (e.g. the Bolt area). This is a reference heuristic from room acoustics literature, not a guarantee — a "good ratio" room can still have real problems, and a "bad ratio" room can be treated successfully.

Room shape

Mode frequency graph

Range to300 Hz

Each marker is a calculated resonant frequency of this room (a room mode) — not a measured sound level. Height only separates overlapping markers for readability. Click or tap a marker: axial modes jump to their standing-wave shape below, tangential/oblique modes jump to their row in the full table.

AxialTangentialOblique

Mode density by band

count of modes per 20 Hz band

How many resonances fall in each 20 Hz slice below 300 Hz. Tall bars mean several modes stacked close together (likely reinforced/boomy); empty gaps mean no resonance support in that range.

Standing wave shape

Choose an axial mode to visualize

Theoretical pressure pattern for this single mode only (ignores every other mode and any furniture/absorption) — a simplified picture of the standing wave shape, not a prediction of your room's full measured response.

Frequency	Indices (nx,ny,nz)	Type

Two different things, on purpose

What you just used is a DIY calculator — you read the numbers and decide what they mean for your room. A Studio Analysis is different: a person actually looks at your specific room and tells you what they'd do.

DIY: this calculator, and the products

You provide the dimensions (and, for the paid spreadsheets, the surfaces and materials). The engine calculates. You interpret the results yourself — the Room Summary and attention flags on the full calculator help, but no one has looked at your actual room.

See DIY products

Personal review: Studio Analysis reports

You send your room's details — and, for the higher tiers, photos and your specific problems. A person reviews it and writes back a narrative addressing your room, not a generic one. Starts at €49 for a calculation-engine report with light human review; the Personal Studio Analysis and Complete Studio Consultation tiers add a full written review and a live call.

See Studio Analysis reports