One study shows you can put a price on happiness - $81,000

HOW much money do you need to buy happiness?

According to one study, $81,000.

Two Princeton University researches went on a quest to discover if money could buy happiness, by evaluating people's day-to-day happiness and their overall satisfaction with life.

Those with lower incomes reported more emotional misery and low life evaluation, but the pair found the happiness tipping point sat at $US75K.

Taking into account conversion rates at the time of the study, this would equate to $81,000 Australian.

"Beyond $75,000 (US)…higher income is neither the road to experience happiness nor the road to relief of unhappiness or stress," Mr Kahneman and Mr Deaton wrote in the report.