Toronto is 75k CAD (57k USD) (https://www.glassdoor.com/Salaries/toronto-software-engineer-salary-SRCH_IL.0,7_IM976_KO8,25.htm https://www.glassdoor.com/Salarie

Toronto is 75k CAD (57k USD) (https://www.glassdoor.com/Salaries/toronto-software-engineer-salary-SRCH_IL.0,7_IM976_KO8,25.htm https://www.glassdoor.com/Salaries/toronto-software-engineer...) San Francisco is 124k USD (https://www.glassdoor.com/Salaries/san-francisco-software-engineer-salary-SRCH_IL.0,13_IM759_KO14,31.htm https://www.glassdoor.com/Salaries/san-francisco-software-en...) So, it's not triple, but it's more than double. Also, if you're going from a junior/midlevel role in CA to a senior position in the US, you could pretty easily triple your salary.