Workdays From Date Calculator
Find the date that is N business days before or after a start date.
Results update as you type.
About this calculator
A workdays from date calculator moves forward or backward by a number of working days — skipping Saturdays and Sundays, plus any holidays you enter — from a start date, and returns the resulting date, its weekday and the calendar span it covers. It is the tool for "5 business days from today" style deadlines used in shipping, contracts and settlement dates.
It works by stepping one day at a time from the start date in the direction you choose, counting only the weekdays and quietly passing over every Saturday, Sunday and holiday until it has counted off the number of business days you asked for. Because weekends still elapse without being counted, the resulting calendar date is usually further away than the raw business-day number suggests, which is why the tool also reports the total calendar days spanned.
For example, 10 business days after Friday 1 August 2025 is Friday 15 August 2025 — two working weeks later, spanning 14 calendar days because two weekends fall inside. People use it to answer "what is the deadline if I have 5 business days to respond", to find a T+2 stock settlement date, or to schedule a delivery promised in a set number of working days.
Frequently asked questions
Is the start date counted as day zero?
Yes. Counting begins on the next working day, so "one business day after" a Friday is the following Monday, not the Friday itself.
Why is the calendar span larger than the business days?
Because weekends are skipped but still elapse. Ten business days forward spans fourteen calendar days once the two intervening weekends are included.
How does the holidays field work?
Any holidays you enter are skipped in addition to the business days, pushing the result further out — useful when a public holiday falls inside the span.
What date is 5 business days from today?
Set the start to today, enter 5 and choose After. This workdays from date calculator lands on the fifth following weekday — normally the next week if today is a weekday — and names the day it falls on.
Can I count business days backward?
Yes. Choose Before and the tool walks backward through the weekdays, so you can answer questions like "what date was 3 working days before this deadline".
How is this different from the business days calculator?
This tool starts from one date and a number of working days to find a new date. The business days calculator instead takes two known dates and counts how many working days lie between them.
Does landing on a weekend push the result to Monday?
The result can never fall on a weekend, because weekends are never counted as business days. The count always finishes on a Monday-to-Friday date (and skips any holidays you entered too).
API — use this calculator from code
Call this calculator as a free JSON endpoint — no key required. Send the field values below as query parameters or JSON. Read the full API docs →
Endpoint
GET https://calculator.free/api/v1/workdays-from-date/curl
curl "https://calculator.free/api/v1/workdays-from-date/?days=10&direction=after"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/workdays-from-date/?" + new URLSearchParams({
"days": "10",
"direction": "after"
}));
const data = await r.json();
console.log(data.results);Results are estimates for general guidance only, not financial, medical or tax advice.