Audio Bitrate and File Size Calculator
Estimate an audio file's size from its bitrate and duration using a constant-bitrate calculation. The result is an approximate decimal megabyte value and does not include container or metadata overhead.
Calculators
Planning tools for home recording & music making, with visible assumptions and units.
Estimate an audio file's size from its bitrate and duration using a constant-bitrate calculation. The result is an approximate decimal megabyte value and does not include container or metadata overhead.
Estimate the decimal megabyte size of audio files from their duration, bitrate, and file count. The calculation assumes a constant bitrate and excludes container and metadata overhead.
Estimate the one-way audio latency added by a digital buffer, in milliseconds, from its size in samples and the audio sample rate. This simplified estimate covers one buffer pass only.
Convert a music tempo in beats per minute (BPM) into the duration of one beat in milliseconds. Enter a tempo to see how long a beat lasts, which can help set delay times, plan rhythmic effects, and understand timing in a recording session.
Subtract one sound level from another to find their difference in decibels (dB). This arithmetic comparison does not calculate perceived loudness or combine sound sources.
Calculate a tempo-synced delay time in milliseconds from a song’s tempo and the selected rhythmic note value.
Estimate the energy used by audio and recording equipment from its rated power, daily operating time, and days of use. The estimate assumes the equipment draws its stated average power whenever it is on.
Convert a frequency into the time for one cycle. Enter a positive frequency and select its unit to see the period in seconds.
Add the hours and minutes from a headphone listening session to record its total duration in hours.
Estimate the horizontal reach needed to position a microphone from a stand’s base or clamp point, using the horizontal distance and any offset from the stand’s centerline.
Estimate decimal megabytes of audio storage for a set of podcast episodes from episode length, episode count, and bitrate. The estimate assumes every episode uses the same constant bitrate and excludes container, metadata, artwork, and filesystem overhead.
Estimate the storage capacity needed for audio session files and their backup copies using uncompressed PCM audio assumptions.
Estimate uncompressed audio storage for a recording session from track count, duration, sample rate, and bit depth. The estimate assumes mono tracks and excludes project files, backups, and filesystem overhead.
Calculate the target-to-source sample rate ratio and the converted sample count for an audio recording or session.
Convert a digital audio sample count into its duration in milliseconds using the sample rate in samples per second.
Calculate the wavelength of a sound wave from its frequency and the speed of sound. Enter frequency in hertz and sound speed in meters per second. The result is the distance one complete wave cycle travels in the chosen medium.
Estimate the electricity cost of running speakers from their measured power draw, listening time, usage days, and electricity price. The estimate assumes the selected wattage is average wall power while the speakers are on.
Calculate the uncompressed PCM data rate for exactly two stereo channels from sample rate and bit depth. Output is decimal kilobits per second. It excludes compression, file/container headers and network overhead.
Estimate a practical cable length for a studio desk run by adding the straight-line route, routing slack, and extra length for equipment movement or service access. This is a planning estimate; measure the actual path before buying cable.
Estimate a recording session budget from studio time, hourly rate, extra session costs, and a contingency allowance. This is a planning estimate based on the amounts you enter.