Productivity Calculators
Word counts, reading and speaking time, text tools and screen time.
7 free productivity calculators — no signup, mobile-friendly, formulas verified by our editorial team.
Featured productivity calculators
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Word Counter
Words, characters, sentences, paragraphs and reading time for any text.
Character Counter
Character counts against X, SMS, meta title and meta description limits.
Image Aspect Ratio Calculator
Resize images without distortion and match standard social and video ratios.
Reading Time Calculator
How long an article takes to read at slow, average and fast speeds.
Screen Time Calculator
Daily, weekly and yearly screen time and the share of your waking day.
Speaking Time Calculator
Speech length from a script, with pace and pause allowances.
Text Case Converter
Convert text to Title Case, sentence case, camelCase, snake_case or a URL slug.
Popular in productivity
Character Counter
Character counts against X, SMS, meta title and meta description limits.
Image Aspect Ratio Calculator
Resize images without distortion and match standard social and video ratios.
Reading Time Calculator
How long an article takes to read at slow, average and fast speeds.
Screen Time Calculator
Daily, weekly and yearly screen time and the share of your waking day.
Speaking Time Calculator
Speech length from a script, with pace and pause allowances.
Text Case Converter
Convert text to Title Case, sentence case, camelCase, snake_case or a URL slug.
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Official Sources & References
The formulas, rates and definitions used by this calculator are aligned with the following official sources:
- U.S. Department of Labor — Wage and Hour Division — Federal overtime, workweek and paid-leave rules.
- Bureau of Labor Statistics — Employment & Earnings — Official U.S. hours-worked and earnings benchmarks.
We use only primary sources — regulators, standards bodies and scheme operators. See our full sourcing policy for details. Sources & References Policy · Calculator Methodology · How We Verify Formulas