Number of Days Calculator
Kouji Yamauchi
Day Calculator is an app that allows you to easily calculate dates and days.
In-app purchases in United States
Items currently visible on Apple’s public App Store page. This may not be the complete App Store Connect catalog.
Source: Apple public App Store page · Publicly visible items only · Checked Aug 6, 2026
About Number of Days CalculatorStorefront description supplied by Apple.
Day Calculator is an app that allows you to easily calculate dates and days.
You can easily check dates such as anniversaries because you can calculate the number of days from the date or the date from the number of days.
You can also specify whether to include the start date or not.
・Calculate the number of days from a date
You can calculate the number of days between start and end dates. In addition to notation by year, month and day, it is also displayed by month and day, or day only.
・Calculate date by date + number of days
You can easily see the date after a certain number of days from the start date and number of days.
・Calculate date with date - number of days
From the start date and number of days, you can easily check the previous date for that number of days.
・ Calculate the number of days from today on X day
If you enter the date, you can check how many days from today that date is. It is also displayed in year, month, day, month and day, or day only.
・Calculate how many days ago from today
If you enter the date, you can check how many days ago that day is from today. It is also displayed in year, month, day, month and day, or day only.
Frequently asked questions
Quick answers based on the latest observed App Store data.
How much does Number of Days Calculator cost in United States?
The latest observed download price is Free. Open the official App Store link to confirm the current checkout price.
Does Number of Days Calculator have in-app purchases?
Apple's public page currently shows 0 purchase items in this storefront. The public list may be incomplete.