音楽＆オーディオ 計算機

Convert BPM to delay time in milliseconds for any note value. Enter BPM — see delay times for whole, half, quarter, eighth, and triplet notes. Free.

Calculate the exact frequencies of every note in any chord. Enter root note and chord type — see Hz values for all intervals. Free.

Calculate string tension for any tuning, scale length, and gauge. Enter your setup — see tension in pounds and kilograms per string. Free.

Estimate Spotify streaming royalties from monthly play count. Enter streams — see estimated earnings by distribution tier and country. Free.

Calculate break-even ticket sales and venue ROI for live events. Enter venue costs, ticket price, and capacity — see profitability threshold. Free.

Compare professional studio booking vs home studio build cost. Enter project hours and specs — see 3-year cost comparison and break-even. Free.

Estimate total album recording, mixing, and mastering budget. Enter track count and production tier — see itemized cost breakdown. Free.

Estimate performance royalties from radio, streaming, and TV airplay. Enter performance data — see expected ASCAP/BMI quarterly payment. Free.

Find open chord shapes with any capo position. Enter original chords and target capo — see equivalent open-position chord names. Free.

Find all notes in any musical scale. Enter root note and scale type — see the full scale pattern, intervals, and relative modes. Free.

Calculate exact tuning frequency for alternate temperaments and concert pitch. Enter reference A and note — see Hz for all 12 semitones. Free.

Transpose any song to a new key. Enter original key and semitones to shift — see new key, chord chart, and capo equivalent. Free.

Calculate the interval between any two notes. Enter two pitches — see interval name, semitone count, and consonance rating. Free.

Calculate reverb decay time (RT60) for any room. Enter room dimensions and absorption coefficient — see RT60 and recommended settings. Free.

Calculate total audio system latency from buffer size and sample rate. Enter your DAW settings — see latency in ms and playability threshold. Free.

Calculate ideal studio monitor distance and angle for your room. Enter monitor size and room width — see optimal placement triangle. Free.

Identify your vocal range and voice type. Enter your lowest and highest comfortable notes — see voice classification and famous singer comparisons. Free.

Calculate total streaming income across Spotify, Apple Music, YouTube, and Tidal. Enter monthly streams per platform — see blended royalty income. Free.

Calculate music tour profitability from venue fees, merch, and travel costs. Enter tour dates and financials — see profit/loss per show and tour total. Free.

Estimate music video production cost by production tier. Enter concept complexity and shooting days — see itemized budget breakdown. Free.

Calculate gain staging levels for a clean mix. Enter signal levels at each stage — see headroom, gain reduction, and optimal fader positions. Free.

Calculate file size and quality impact when converting between sample rates. Enter original and target rate — see file size change and quality tradeoff. Free.

Calculate theoretical dynamic range in dB from audio bit depth. Enter bit depth — see dynamic range, noise floor, and format comparison table. Free.

Calculate target LUFS for streaming platforms and True Peak limits. Enter master level — see compliance for Spotify, Apple Music, YouTube, and more. Free.

Calculate total playlist length from track count and average song length. Enter track list — see total duration, average length, and streaming value. Free.

Calculate podcast revenue per thousand downloads (RPM) and monthly income. Enter download count and ad rates — see income breakdown by format. Free.

Split gig income, streaming royalties, and merch revenue fairly among band members. Enter revenue and contribution weights — see each member's share. Free.

Calculate break-even ticket sales for any venue. Enter fixed costs, ticket price, and venue capacity — see break-even attendance and profit margin. Free.

Map diatonic intervals in any key. Enter key and scale degree — see interval quality, note name, and chord function. Free.

Convert between BPM, beats per bar, and note duration values. Enter BPM and time signature — see ms per beat, bar length, and subdivision table. Free.