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How to calculate the percentage between two dates in Excel?

Supposing, I have a list of tasks with start date and end date, now, I want to calculate the percentage of completion of the task based on today’s date as the following screenshot shown. How could you solve this job in Excel?

Calculate the percentage of completion between two dates with formula


Calculate the percentage of completion between two dates with formula

For calculating the percentage of completion of task between two dates, please apply the below formula:

1. Enter this formula into a blank cell where you want to get the result:

=(DATEDIF(B2,TODAY(),"d")+1)/(DATEDIF(B2,C2,"d")+1)

Note: In this formula, B2 is the start date cell, and C2 is the end date cell.

2. Then, drag the fill handle down to the cells you want to apply this formula, and you will get the result as below screenshot shown:

3. Keep selecting the formula cells, and then click Percentage Style under the Home tab in the Number group, and you will get the percentage value as following screenshot shown:


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Comments (17)
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This comment was minimized by the moderator on the site
ank you so much for this. I was into this issue an https://filezilla.software/ d tired to tinker around to check if its possible but couldnt get it done. Now that i have seen the way you did it, thanks guys
with
regards
This comment was minimized by the moderator on the site
how do i find a 62% percentage date between two dates
This comment was minimized by the moderator on the site
thank you for the formula, when i use it for a dates in the future it returns #NUM!. is there a way to get it to return a 0.00 or some sort of text return like "Not Started"? it would be cleaner and more informative and i have other formulas based on the response so having the option to return a 0.00 (and or text options) would be greatly appreciated. thanks!
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same here.
This comment was minimized by the moderator on the site
Hello,
Gald to help. Please use this formula: =MIN(1, (DATEDIF(B2,TODAY(),"d")+1)/(DATEDIF(B2,C2,"d")+1)).

It will maintain it at 100% instead of 100 over percent if today date is exceed the end date. Please see the screenshots. In cell D2, I use the formula in the article, and the result is 156.25%. In cell E2, I use the new formula I offered in this comment, and the result is 100%. Hope it can solve your problem. Have a nice day.
Sincerely,
Mandy
This comment was minimized by the moderator on the site
Hi, Jeff,To solve your problem, please apply the below formula:=IFERROR((DATEDIF(B2,TODAY(),"d")+1)/(DATEDIF(B2,C2,"d")+1),"Not start").
Please try, hope it can help you!

This comment was minimized by the moderator on the site
Hi skyyang, very helpfull this one. How about if today date is exceed the end date, how to maintain it at 100% instead of 100 over percent.
This comment was minimized by the moderator on the site
Hello,
Gald to help. Please use this formula: =MIN(1, (DATEDIF(B2,TODAY(),"d")+1)/(DATEDIF(B2,C2,"d")+1)). It will maintain it at 100% instead of 100 over percent if today date is exceed the end date. Please see the screenshots. In cell D2, I use the formula in the article, and the result is 156.25%. In cell E2, I use the new formula I offered in this comment, and the result is 100%. Hope it can solve your problem. Have a nice day.
Sincerely,
Mandy
This comment was minimized by the moderator on the site
Hi skyyang, very helpful this one. How about if today date is exceed the end date, how to maintain it at 100% instead of 100 over percent.
This comment was minimized by the moderator on the site
Hello,Gald to help. Please use this formula: =MIN(1, (DATEDIF(B2,TODAY(),"d")+1)/(DATEDIF(B2,C2,"d")+1)). It will maintain it at 100% instead of 100 over percent if today date is exceed the end date. Please see the screenshots. In cell D2, I use the formula in the article, and the result is 156.25%. In cell E2, I use the new formula I offered in this comment, and the result is 100%. Hope it can solve your problem. Have a nice day.Sincerely,Mandy
This comment was minimized by the moderator on the site
kenapa jika tepat waktu hasil nya menjadi tidak 100%?
This comment was minimized by the moderator on the site
waktunya habis jam 12 tgh malam..jadi 12.01 baru akan bertukar kepada 100%. harap membantu
This comment was minimized by the moderator on the site
Hello,
Gald to help. Please use this formula: =MIN(1, (DATEDIF(B2,TODAY(),"d")+1)/(DATEDIF(B2,C2,"d")+1)). 
It will maintain it at 100% instead of 100 over percent if today date is exceed the end date. Please see the screenshots. In cell D2, I use the formula in the article, and the result is 156.25%. In cell E2, I use the new formula I offered in this comment, and the result is 100%. Hope it can solve your problem. Have a nice day.
Sincerely,
Mandy
This comment was minimized by the moderator on the site
Hello,
Gald to help. Please use this formula: =MIN(1, (DATEDIF(B2,TODAY(),"d")+1)/(DATEDIF(B2,C2,"d")+1)).
It will maintain it at 100% instead of 100 over percent if today date is exceed the end date. Please see the screenshots. In cell D2, I use the formula in the article, and the result is 156.25%. In cell E2, I use the new formula I offered in this comment, and the result is 100%. Hope it can solve your problem. Have a nice day.
Sincerely,
Mandy
This comment was minimized by the moderator on the site
Привет! Спасибо за формулы!! Весь интернет перерыла, нашла только у вас.
Ругается "параметр 2 не может равняться нулю", когда дата начала и дата окончания одна и та же (заложено, что задача делается в течении дня). Что добавить в формулу?
This comment was minimized by the moderator on the site
Привет! Спасибо за формулы!

Что добавить в формулу, чтобы не ругался, если дата начала и окончания совпадают? (предполагается, что задача выполняется в теч. дня.
This comment was minimized by the moderator on the site
И как быть, если дата начала не определена, а дата окончания известна. В этом случае по формуле пишет 100%. А хочется чтобы писал 0 или ничего.
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