Overall, Coke is most affordable compared with minimum wage in England, especially when Coke Zero is on offer, then Helsinki; in the US it takes the most minimum-wage work to buy a litre, and because regular and sugar-free cost exactly the same, there’s no price incentive at all to choose the sugar-free one.

In England for a 24 pack (330ml?), sugar is £15 (€17.5, $20 USD), sugar free is £12 with a deal for £8.50 (€10, $11.5 USD), no deals for the sugar one! £12.71 is minimum wage here (€14.86, $17.21 USD). In US Walmart I see 24 pack of sugar and non sugar for $15.37 USD (12 OZx24) and US minimum wage is $7.25 USD (£5.40, €6.30).

Location and drink	EUR per litre	GBP per litre	USD per litre
Helsinki — regular Coke	€2.46	£2.10	$2.85
Helsinki — Coke Zero	€1.96	£1.67	$2.26
England — regular Coke	€2.22	£1.89	$2.56
England — Coke Zero, normal price	€1.77	£1.52	$2.05
England — Coke Zero, offer price	€1.26	£1.07	$1.45
US Walmart — regular Coke	€1.56	£1.33	$1.80
US Walmart — Coke Zero	€1.56	£1.33	$1.80

Location and wage benchmark	EUR/hour	GBP/hour	USD/hour	Work for 1 litre of regular Coke	Work for 1 litre of Coke Zero
Helsinki — first-year supermarket minimum	€11.61	£9.92	$13.43	12.7 minutes	10.1 minutes
UK — adult minimum wage	€14.87	£12.71	$17.20	8.9 minutes	7.2 minutes normally; 5.1 on offer
US — federal minimum wage	€6.27	£5.36	$7.25	14.9 minutes	14.9 minutes