Business Days Calculator
Quickly count business days within a range and fine-tune which days are treated as days off.
Range
Days off
Custom days off
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Choose your dates
Set both the start and end date to calculate business days automatically.
Holiday data currently covers 2024–2025.
All calculations run in your browser; nothing is sent to servers.
How to plan with this calculator
- Set a starting date and the number of business days you want to count.
- Choose how weekends are treated and add company-specific holidays to the exclusion list.
- Review the calculated deadline and the intermediate timeline to align your hand-off schedule.
Common use cases
- Quoting realistic delivery dates for ecommerce orders and repair services
- Mapping production milestones and review checkpoints for design teams
- Scheduling finance deadlines, payment reminders, and collection follow-ups
Notes
Holiday presets follow the Japanese calendar. When planning for other regions, add regional public holidays or company shutdowns to the excluded dates list so the calculation stays accurate.