Tools

Measure the room before you treat it.

Enter your room dimensions to see standing waves, resonant modes, reverb time and listening-position guidance. The numbers are a starting point — the same math we run before every design consult.

Room dimensions

Interior measurements in metres. Length is the longer axis; the front wall (behind your monitors) is length ÷ 1.

Standing waves (axial)

Fundamental + first 4 harmonics of each room axis. Two axes sharing a frequency = a build-up you'll hear.

Length34.3 Hz · 68.6 Hz · 103 Hz · 137 Hz
Width42.9 Hz · 85.8 Hz · 129 Hz · 172 Hz
Height61.3 Hz · 123 Hz · 184 Hz · 245 Hz

Room modes below 250 Hz

Rayleigh equation for a rigid rectangular room. Uneven spacing at the bottom of the range causes bass problems.

HzModeType
34.3 Hz1·0·0axial
42.9 Hz0·1·0axial
54.9 Hz1·1·0tangential
61.3 Hz0·0·1axial
68.6 Hz2·0·0axial
70.2 Hz1·0·1tangential
74.8 Hz0·1·1tangential
80.9 Hz2·1·0tangential
82.3 Hz1·1·1oblique
85.8 Hz0·2·0axial
92.0 Hz2·0·1tangential
92.4 Hz1·2·0tangential
101 Hz2·1·1oblique
103 Hz3·0·0axial
105 Hz0·2·1tangential
110 Hz2·2·0tangential
111 Hz1·2·1oblique
111 Hz3·1·0tangential
120 Hz3·0·1tangential
123 Hz0·0·2axial
126 Hz2·2·1oblique
127 Hz3·1·1oblique
127 Hz1·0·2tangential
129 Hz0·3·0axial
130 Hz0·1·2tangential
133 Hz1·3·0tangential
134 Hz3·2·0tangential
134 Hz1·1·2oblique
137 Hz4·0·0axial
140 Hz2·0·2tangential
142 Hz0·3·1tangential
144 Hz4·1·0tangential
146 Hz2·3·0tangential
147 Hz1·3·1oblique
147 Hz2·1·2oblique
147 Hz3·2·1oblique
150 Hz0·2·2tangential
150 Hz4·0·1tangential
153 Hz1·2·2oblique
156 Hz4·1·1oblique
158 Hz2·3·1oblique
160 Hz3·0·2tangential
162 Hz4·2·0tangential
165 Hz2·2·2oblique
165 Hz3·3·0tangential
166 Hz3·1·2oblique
172 Hz0·4·0axial
172 Hz5·0·0axial
173 Hz4·2·1oblique
175 Hz1·4·0tangential
176 Hz3·3·1oblique
177 Hz5·1·0tangential
178 Hz0·3·2tangential
181 Hz1·3·2oblique
182 Hz3·2·2oblique
182 Hz0·4·1tangential
182 Hz5·0·1tangential
184 Hz0·0·3axial
184 Hz4·0·2tangential
185 Hz2·4·0tangential
185 Hz1·4·1oblique
187 Hz1·0·3tangential
187 Hz5·1·1oblique
188 Hz4·3·0tangential
189 Hz0·1·3tangential
189 Hz4·1·2oblique
190 Hz2·3·2oblique
192 Hz5·2·0tangential
192 Hz1·1·3oblique
195 Hz2·4·1oblique
196 Hz2·0·3tangential
198 Hz4·3·1oblique
200 Hz3·4·0tangential
201 Hz2·1·3oblique
201 Hz5·2·1oblique
203 Hz0·2·3tangential
203 Hz4·2·2oblique
205 Hz3·3·2oblique
206 Hz1·2·3oblique
206 Hz6·0·0axial
209 Hz3·4·1oblique
210 Hz6·1·0tangential
211 Hz3·0·3tangential
211 Hz0·4·2tangential
211 Hz5·0·2tangential
214 Hz1·4·2oblique
214 Hz2·2·3oblique
214 Hz0·5·0axial
214 Hz5·3·0tangential
215 Hz6·0·1tangential
215 Hz3·1·3oblique
215 Hz5·1·2oblique
217 Hz1·5·0tangential
219 Hz6·1·1oblique
220 Hz4·4·0tangential
222 Hz2·4·2oblique
223 Hz6·2·0tangential
223 Hz0·5·1tangential
223 Hz5·3·1oblique
224 Hz0·3·3tangential
224 Hz4·3·2oblique
225 Hz2·5·0tangential
226 Hz1·5·1oblique
227 Hz1·3·3oblique
227 Hz3·2·3oblique
228 Hz5·2·2oblique
228 Hz4·4·1oblique
229 Hz4·0·3tangential
231 Hz6·2·1oblique
233 Hz2·5·1oblique
233 Hz4·1·3oblique
235 Hz3·4·2oblique
235 Hz2·3·3oblique
238 Hz3·5·0tangential
239 Hz6·0·2tangential
243 Hz5·4·0tangential
243 Hz6·3·0tangential
243 Hz6·1·2oblique
245 Hz4·2·3oblique
245 Hz0·0·4axial
246 Hz3·5·1oblique
247 Hz3·3·3oblique
247 Hz0·5·2tangential
247 Hz5·3·2oblique
247 Hz1·0·4tangential
249 Hz0·1·4tangential
249 Hz1·5·2oblique

Modes stacked closely: 68.6 Hz↔70.2 Hz, 70.2 Hz↔74.8 Hz, 80.9 Hz↔82.3 Hz, 82.3 Hz↔85.8 Hz. Expect bass build-up around these bands.

Reverb time (RT60, Sabine)

0.161 · V / (S · ᾱ). Aim ~0.25 s for mixing, ~0.4 s for tracking, ~0.6 s for a live room.

Volume
56.0 m³
Surface area
90.4 m²
Total absorption A
22.6 sabins
Estimated RT60
0.40 s

Listening position (38 % rule)

Placing your head at 38 % of the room length avoids the worst axial mode nodes for most rectangular rooms.

From front wall
1.90 m
From rear wall
3.10 m
Centre offset
2.00 m
Next step

Turn these numbers into a treated room.

Share the readings with us for a free estimate, or pick the products below to start treating your space today. Every consultation includes a free room-mode review by our team.

Volume
56.0 m³
Floor area
20.0 m²
Room ratio
1.79 : 1.43 : 1
Assumed α
0.25
Recommended for your room

Suggested treatment

Curated based on your room volume. Add them to your cart, or ask us to size and place them for you.

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