Research commissioned by Green Flag Breakdown reveals that more than 8.5 million UK adults - 18 per cent of the population - were unable to work their contracted hours because of the adverse weather.
This cost employers an estimated £318 million, the firm claimed.
The snow and icy conditions kept almost one in five (19 per cent) people off the road because they were afraid of driving.
Meanwhile, a further 2.3 million (five per cent) people tried to take to the roads but were unable to because of ice on the roads.
Green Flag Breakdown reported that over 3.8 million people missed at least a full day as a result of the arctic weather conditions.
And over 590,000 people missed at least two days of work in the last week - the result of which is lost productivity for their employers.
Miranda Schunke, spokesperson for Green Flag, said it is not only the roads that have been frozen in the last week.
She noted that for millions, work commitments were also put on ice, with people unable to travel to their place of employment.
However, many firms have used remote working practices - supported by cloud computing and mobile technology - to mitigate the impacts of the weather.
Many employees chose to work at home last week using their broadband connection, helping to ensure business continuity despite the weather.
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