The Script Duration & Speech Time Calculator estimates how long your written script will take to read aloud across standard speaking speeds.

### Speaking Cadence Mathematical Model The calculator counts words using whitespace tokenization (`\s+`) and derives speech delivery duration across three standard pacing benchmarks: - Slow Pacing (110 Words Per Minute): Suited for formal keynote presentations, corporate addresses, and dramatic storytelling: $$\text{Duration (sec)} = \text{round}\left(\frac{\text{Word Count}}{110} \times 60\right)$$ - Normal Conversational (140 Words Per Minute): Suited for educational explainer videos, podcasts, and everyday presentations: $$\text{Duration (sec)} = \text{round}\left(\frac{\text{Word Count}}{140} \times 60\right)$$ - Fast Commercial Pacing (170 Words Per Minute): Suited for broadcast advertising disclaimers, rapid voiceovers, and high-energy promotional reels: $$\text{Duration (sec)} = \text{round}\left(\frac{\text{Word Count}}{170} \times 60\right)$$

### Worked Numeric Example Consider a video script containing 280 words: - Word Count: $280\text{ words}$ ($1{,}750\text{ characters}$) - Delivery Durations: - Slow Cadence (110 WPM): $(280 / 110) \times 60 = 153\text{ seconds} = 2\text{m } 33\text{s}$ - Normal Cadence (140 WPM): $(280 / 140) \times 60 = 120\text{ seconds} = 2\text{m } 00\text{s}$ - Fast Cadence (170 WPM): $(280 / 170) \times 60 = 99\text{ seconds} = 1\text{m } 39\text{s}$

### Private In-Browser Execution All word parsing, character tallies, and speech timing calculations run locally in your browser memory. Unreleased video scripts, speech outlines, and sensitive drafts are never saved or sent to external servers.