https://preview.redd.it/843to9yxejug1.jpg?width=838&format=pjpg&auto=webp&s=8c229e47b6a35c8c942a845f7e484dde2f2fb969

Credit to Ice - https://x.com/loremipsumverb/status/2042534431227863426?s=46

The white line is what I’m gonna be using for the calculation, so just ignore the red line. The white line is representative of the distance between Priestella and Roswaal’s mansion. And the blue line is representative of the distance between Roswaal's mansion and the Pleiades watchtower.

It takes the Pleiades group ten days to get from Priestella to Roswaal’s new mansion, as stated in Arc 6 Chapter 1.

Arc 6 Chap 1:

>When the dragon carriage arrived at Roswaal’s mansion, more than one hour had gone by past noon.

>The long migration from the city of Pristella, which had taken about ten days, went on a temporary hold.

>???: [Subaru!]

>Subaru: [Ohh, Petra, woahwah!?]

>They rode the ground dragons towards Roswaal’s mansion, gave their thanks to the coachman, and then got off the carriage. A petite maid rushed towards Subaru from the mansion, and jumped at him with unrestrained force.

Furthermore, the distance from the mansion to the watchtower is twenty days worth of travel, as is stated here:

Arc 6 Chapter 4

>The aforementioned were the seven members of the party who would face the Augria Sand Dunes located at the eastern end of the world.

>The Augria Sand Dunes, a place located at the edge of the world, laid in a straight line east of the new Roswaal mansion—— but, as the path they would travel was longer than the one leading to the Watergate City of Pristella, it would take close to twenty days for just a one-way trip.

Furthermore, Ground Dragons of the Gryas species are capable of running and maintaining their top speed for three days and three nights, so we will be using six days before each rest interval to calculate the distance between the mansion and the sand dunes. Patarasche should also be capable of comparing considering there is no note of her falling behind in stamina, and she is also stated to be hyper adaptable just like the Gryas species here:

Arc 6 Chapter 4:

>Subaru: “These dragons adapted to sandy soil are going there, but can we really bring my Patrasche to a place like that? Can’t do anything unreasonable with the lady of the camp.”

>Julius: “Your beloved dragon belongs to the Diana species, which is considered the ancestor of all ground dragons. The founding forefather dragon, dominant on land, sea, and air is present in her lineage… It has excellent adaptability, no matter what the environment is. Unfortunately, my Shaknar will be left at the town.'

With that being said, we can begin the calc. First I will give the calculation of the map given the white line as reference, and then I will give a calculation using the blue line as reference.

To be clear, Ground Dragons as stated by Subaru are capable of moving at 100km/h.

Volume 3 Chapter 4

>He responded to Roswaal’s question while his seat jarred, he could feel the vibrations from the bottom of the frame travel up his legs. He couldn’t tell if the carriage was going at a leisure pace, but looking out from the window the speed at which scenery passed by was anything but relaxed. Measuring it by eye the carriage had to be going close to 100 km/hr, that it could match up cars to this extent was shocking.

>“Yes yes. We’ll get to the capital in another four hours, so just behave yourself till then.”

If the trip from Priestella to the mansion takes ten days, and we assume that they have eight hours rest after every six days, then we can proceed with the calculations.

Nerdy math section - White Line

Total moving time = 10 x 24 - 8 = 232 hours

Total moving distance = 232 x 100 = 23,200 km

From my calculations, the white line is 117.6 px in the image. So, the map scale is:

• 23,200 / 117.6 = 197.2 km per pixel

The main landmass is about ~729 px wide, ~378 px tall

Landmass size:

• Total moving time = 10 x 24 - 8 = 232 hours

Total moving distance = 232 x 100 = 23,200 km

From my calculations, the white line is 117.6 px in the image. So, the map scale is:

• 23,200 / 117.6 = 197.2 km per pixel

The main landmass is about ~729 px wide, ~378 px tall

• Width: 728 × 197.2 ≈ 143,500 km
• Height: 378 × 197.2 ≈ 74,400 km

Area = 143,500 × 74,400 ≈ 10.7 billion km²

Final Results - White Line

• 11.3x Earth's diameter in width
• ~21x Earth's total surface area
• ~72x Earth's total land area

Nerdy maths section - Blue Line

Total rest time - 3 × 8 = 24 hours

Total moving time - 480 − 24 = 456 hours

Total distance travelled is:

• 456 x 100 = 45,600 km

Blue line = 662.3 pixels long

The scale is:

• 45,600 / 662.3 = 68.85 km/px

Same landmass size as before:

• Width = ~728 px
• Height = ~378 px

Final results - Blue Line

Width - 728 × 68.85 = 50,123 km

Height - 378 × 68.85 = 26,025 km

Area - 50,123 × 26,025 ~ 1.30 billion km²

--

Compared to Earth, that is -

• 3.93x Earth's diameter in width
• 2.55x Earth's total surface area
• 8.7X Earth's total land area

--

Given the Blue Line calc, the Re:Zero world is 4 Earth's wide, 2 Earth's tall with 2.5 Earth's worth of surface area.

Given the White Line calc, the Re:Zero world is 11 Earth's wide, 6 Earth's tall with 21 Earth's worth of surface area.

I was just wondering, I calculated this and got Large Planet, but i thought that was a highball, so I’ll ask here

the planet is 200 Million miles in surface area btw (7979 miles diamete)

Avg height of a tall 2 story is 6-7.6 metres. Ima just wank and call it 7.6 metres tall.

7.6 = 760cm

760/152 = 5cm / px (scale).

Volume = L × W × D

L = 1306 × 5 = 6,530 cm

W = 1245 × 5 = 6225 cm

D = 333 × 5 = 1665 cm

Volume = (6530 × 6225 × 1665) = 67,681,001,250 cm³.

Apply hollowness of 85%

0.15 × 67,681,001,250 = 10,152,150,187.5 cm³.

From this image it seems to be mostly fragmentation and slight violent fragmentation. So I'll use 90% frag 10% Violent frag.

Frag = 8J/cc

Violent frag = 69J/cc

0.9×10,152,150,187.5×8 = 73,095,481,350J.

0.1×10,152,150,187.5×69 = 70,049,836,293.75J.

Total = 143,145,317,643.75 Joules

1 ton of tnt = 4.184×10⁹

Tnt yield = 34.21 tons of tnt (city block level or 8-B)

I left out some stuff in the older calc I had previously made. said calc is here in this link : https://www.reddit.com/r/FeatCalcing/s/e8ZPXv9n88

(check out the prev calc first and to get an idea).

here is the extra stuff :

# extra

Assume 80% wood 20% concrete. Hardest wood I found on vsbw was OAK LIVE.

Vol of wood : 8,045,541,444.9784 cm³

Vol of concrete : 2,011,385,361.2446 cm³

[ Wood values : ]

[Frag = 18.3401 J/cc]

[Violent frag = 19.5811 J/cc]

[Pulverisation = 61.3633 J/cc]

Lowball : 39/400 = 0.0977814995 tons of tnt (wall+ to Small building).

Midball : 70/400 = 0.177059119 tons of tnt (small building).

Highball : 220/400 = 0.55 tons of tnt (Small building to building level).