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Bass · Frequency

245 Hz tone

Play a 245 Hz tone online, see what note it is, how long its wave is and which animals can hear it. It is a low bass tone – a warm hum similar to the low strings of a cello or bass guitar. Phone speakers reproduce it weakly; headphones work much better.

245.0Hz

Start with your device volume low. Very low tones may be inaudible on phone or laptop speakers; very high tones can be uncomfortable on headphones.

4.08 msPeriod (one cycle)
1.40 mWavelength in air (20 °C)
B3-14¢Nearest note (A4 = 440 Hz)
YesAudible to humans

What does 245 Hz sound like?

245 Hz is a bass frequency. It is a low bass tone – a warm hum similar to the low strings of a cello or bass guitar. Phone speakers reproduce it weakly; headphones work much better.

A 245 Hz sound wave completes 245 cycles every second, so one cycle lasts 4.08 ms. In air at 20 °C, where sound travels at about 343 m/s, each wave is 1.40 m (4.59 ft) long; in water it stretches to 6.04 m because sound moves about 4.3 times faster there.

Musically, 245 Hz is 14 cents below B3 (246.94 Hz) in standard A440 tuning. Doubling it to 490 Hz raises the pitch by one octave; halving it to 122.5 Hz lowers it by one.

Wavelength of 245 Hz in different materials

MediumSpeed of soundWavelength
Air (20 °C)343 m/s1.40 m
Fresh water1,481 m/s6.04 m
Seawater1,500 m/s6.12 m
Helium1,007 m/s4.11 m
Steel5,960 m/s24.33 m
Glass5,640 m/s23.02 m

Harmonics and octaves

Real instruments playing 245 Hz also produce harmonics at whole-number multiples of the fundamental. Their relative strength gives each instrument its timbre.

HarmonicFrequencyNearest note
1× (fundamental)245 HzB3
2×490 HzB4
3×735 HzF♯5
4×980 HzB5
5×1.225 kHzD♯6
6×1.47 kHzF♯6
7×1.715 kHzA6
8×1.96 kHzB6

Which animals can hear 245 Hz?

Instruments and voices that can play 245 Hz

Frequently asked questions

What does 245 Hz sound like?

It is a low bass tone – a warm hum similar to the low strings of a cello or bass guitar. Phone speakers reproduce it weakly; headphones work much better.

Can humans hear 245 Hz?

Yes. 245 Hz is inside the typical human hearing range of 20 Hz to 20 kHz.

What musical note is 245 Hz?

245 Hz is 14 cents below B3, which is 246.94 Hz in standard A440 tuning.

What is the wavelength of 245 Hz?

About 1.40 m in air at 20 °C and 6.04 m in water.

Can dogs hear 245 Hz?

Yes – dogs hear roughly 67 Hz to 45,000 Hz.