Hello, @Sid Merrett !
A quick disclaimer before I try to answer your question: For questions about billing you'll want to reach out to billing directly as we're set up to answer questions of a more technical nature. You can do this by opening a billing ticket in the portal by going to Help + support > New support request > Billing and then completing the wizard.
Am I the only one seeing this?
I'm seeing the same prices you are from the Azure Pricing Calculator. No need to troubleshoot your browser or session. See more on exactly what I'm seeing below.
Making a comparison
Before getting into the pricing calculator, it may be helpful to use the pricing options guide when comparing the cost of several different VM SKUs or benefit price vs reserved price:
https://azure.microsoft.com/en-us/pricing/details/virtual-machines/sql-server-standard/
Example 1: The Bs Series
I went through the Bs-series with the following configuration:
Region: UK South
OS: Windows
Type: SQL Server
Tier: Standard
License: SQL Standard
Compute / OS (Windows) / Software (SQL Server)
B1ms (1 core ) : £12.73 / £2.16 / £215.74
B2ms (2 cores): £50.91 / £4.10 / £215.74
B4ms (4 cores): £101.94 / £8.63 / £215.74
B8ms (8 cores): £203.87 / £17.26 / £431.47
B12ms (12 cores): £305.27 / £25.89 / £647.21
B16ms (16 cores): £407.20 / £34.52 / £862.95
B20ms (20 cores): £509.14 / £43.15 / £1,078.68
At least for this example we see a relatively linear increase in OS cost that corresponds to the number of cores (at a little over £2 per core). For the software cost, it appears that there is a minimum cost up until 4 cores and then a linear increase of roughly £215.74 for every 4 cores added.
Example 2: DS SKUs
I went through the DS SKUs with the following configuration:
Region: UK South
OS: Windows
Type: SQL Server
Tier: Standard
License: SQL Standard
Compute / OS (Windows) / Software (SQL Server)
DS14-4 v2 (4 cores) : £1,010.73 / £316.05 / £215.74
DS14-8 v2 (8 cores) : £1,010.73 / £316.05 / £431.47
DS12 v2 (4 cores) : £252.95 / £78.74 / £215.74
DS13 v2 (8 cores) : £505.36 / £158.03 / £431.47
DS14 v2 (16 cores) : £1,010.73 / £316.05 / £862.95
DS15 v2 (20 cores) : £1,263.68 / £394.80 / £1,078.68
Here, having the DS14-4/8 v2 along side the DS12-15 v2 lineup helps make things clearer. You can see that both the DS14-4 v2 and DS14-8 v2 have the same OS cost as the DS14 v2 (£316.05) while the software cost matches the core count (£215.74 and £431.47). Looking at the DSv12-15 v2 you can see the same linear increase in OS and software cost.