Breakdown service Green Flag said those taking to the roads were likely to make round-trips averaging 125 miles over the holiday period.
The company reckoned 10.30am on Saturday would be the peak time for congestion, with 10.30am on Good Friday also likely to be very busy.
It added that drivers were likely to spend around £360 million on fuel this Easter, a 145% increase on the Easter 2012 total.
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After a mostly dry start, cloud will continue to thicken with some showery rain likely this afternoon. Highs of 18 deg C (64 deg F).
Tributes have been pouring in for a woman who died in a house fire in West Norfolk.
Any residual evening showers should die out. Clear spells at first, and turning chilly in places. Lows of 9 deg C (48 deg F).