This is interesting. Now your figure is right, but I know you will get extra if you are married even if your wife is 40 years your junior- well, you will if you live in the UK; but what about Foxy Poster, will he get extra for his Chinese wife, both of them living in China? I know that i will be getting more than the £110.15- I assume that's because i have a Chinese wife. I have always paid my contribution when away from UK.

Usually the State Pension is based upon a total of 30 years of National Insurance Contributions, I have heard that the 30 years will be amended to 35 years at some point in the future.

Yes the married state pension is more than the weekly amount, however I'm not sure of the rules on a married couple where one is a non UK citizen and where they live overseas. Here is a link to check the details https://www.gov.uk/state-pension-if-you-retire-abroad/how-to-claim

You're right about retiring in UK because your wife would then be eligible for UK citizenship in that case I think you would be advised to get in touch with the Pension Service and pay any missing (at her age) National Insurance on her behalf in a lump sum, then she would be building up an entitlement to a State Pension.. I think the missing years payment would only be £130 per year..

But above all - Don't read stuff on a forum and believe - Always check something this important with a factotum at the Pension Service.