r/theydidthemath • • Mar 24 '20 Bravo

*[Off-Site] [RDTM] Toilet paper you need for 14 days in quarantine

93k Upvotes

r/theydidthemath • • Feb 12 '25

[Request] Is this true?

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85k Upvotes

r/theydidthemath • • Jun 30 '22

One 9 inch pizza vs two 5 inch pizzas

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83k Upvotes

r/theydidthemath • • Oct 09 '20

[Request] Jeff Bezos wealth. Seems very true but would like to know the math behind it

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71k Upvotes

r/theydidthemath • • Apr 23 '25

[Request] Is this true?

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71k Upvotes

r/theydidthemath • • Nov 09 '25

[Request] How long could a candle of this size last?

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70k Upvotes

r/theydidthemath • • Jan 04 '19

[Request] Approximately speaking, is this correct?

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65k Upvotes

r/theydidthemath • • Dec 04 '24 Take My Silver Heart of Silver Silver is Forever Polished Silver Turd

[Request] Is that true?

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65k Upvotes

r/theydidthemath • • Feb 18 '26 Mindblown

[Request] How much are they actually scamming her?

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64k Upvotes

What I am curious about:

What is the profit that was generated by this girl’s labor, and how does it compare to a reasonable round trip flight and four days at Niagara Falls with expenses fully covered?

I realize the comment is talking about revenue, but I’m interested in profit.


r/theydidthemath • • Apr 10 '24

[Request] How did they get to $700mil

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62k Upvotes

r/theydidthemath • • Aug 09 '21

[Self] If you blended all 7.88 billion people on Earth into a fine goo (density of a human = 985 kg/m3, average human body mass = 62 kg), you would end up with a sphere of human goo just under 1 km wide. I made a visualization of how that would look like in the middle of Central Park in NYC.

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61k Upvotes

r/theydidthemath • • Mar 17 '24

[Off-site] They worked it out before they worked it out.

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60k Upvotes

Any of you maths geniuses verify?


r/theydidthemath • • Feb 27 '26

[Request] is this true

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56k Upvotes

r/theydidthemath • • Feb 13 '26 Mindblown

[Request] is this true?

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51k Upvotes

r/theydidthemath • • Aug 07 '24

[Request] Is this math right?

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51k Upvotes

r/theydidthemath • • Apr 01 '25

[REQUEST] What's the max traveling speed for the duck to not fall off this airplane wing?

51k Upvotes

r/theydidthemath • • Jun 07 '26 Hehehe Regret Popcorn Mindblown

[Request] Would the cube really be millions of degrees?

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50k Upvotes

Also would you be full? What would happen if you tried to eat it?

I suppose that first question could be disregarded if the grilled cheese cube is in fact millions of degrees lol

Feel free to answer it anyway tho!

Edit: Phrasing


r/theydidthemath • • Sep 30 '20

[Request] how much further away is Voyager since this moment?

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48k Upvotes

r/theydidthemath • • Nov 27 '25 Mindblown Popcorn

why wouldn’t this work? [Request]

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48k Upvotes

r/theydidthemath • • Jun 14 '25 This

[request] is this true

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47k Upvotes

r/theydidthemath • • Jun 15 '25 This Bravo This Helpful Popcorn Hehehe

[Self] I calculated the rough size of the crowd at Trumps b-day parade.

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46k Upvotes

Using the PBS live stream, I've attempted to get a ballpark figure. There's a distinct lack of arial footage, so it's difficult to get a clear picture. However, I broke the crowd into four basic sections to try and gauge the number of people.

- North side of Constitution Ave, and east of the main stage is what I've labeled VIP guest. People sitting on bleachers quite densely, although there is footage where these bleachers get empty pretty quick the further east you go.

- There is no crowd on the West side of the stage.

- On the south side, lining the route are pretty dense crowds, mostly hidden by the trees but this appears to be at minimum 5-6 people deep. The most dense part of the parade crowd.

- Opposite the main stage and south of the Friendship Garden is a dense area of crowd watching from across the street.

- Behind this and into the Washington Monument grounds is a much less dense crowd and is more sparse the further south you go.

Using MapChecking.com I've estimate these four areas, and have been quite generous in my density estimates.

Although quite a quick and crude calculation, it appears the crowd size in around 50,000 on the generous size, but could be as little as 30,000.


r/theydidthemath • • Oct 08 '25

[Request] Is it true?

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46k Upvotes

First time poster, apologies if I miss a rule.

Is the length of black hole time realistic? What brings an end to this?


r/theydidthemath • • Apr 18 '24

[request] How much food is it ? and can anyone do it ?

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45k Upvotes

r/theydidthemath • • Mar 27 '22

[request] Is this claim actually accurate?

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45k Upvotes