<p>Assuming 1432195178668.32 was the last value in Q4 2018 you got, just calculate 1432195178668.32 * (1.005) to get the 2019 Q1 Value, save the value. Then take 2019 Q1 * (1.006) to get the next value etc. Easy to do via R or Excel.</p>

<p>Basically if you had an increase x just multiply by (1+x) where x is in decimals, so a change of -0.75 % becomes * (1 - 0.0075)</p>

<p>Then, simply take the average of the four quarters if you want the annual value:
<span class="math-container">$$ \frac{(Q1.2019 + Q2.2019 + Q3.2019 + Q4.2019)} {4} $$</span></p>

CC BY-SA 4.0
2019-12-10T05:34:00.547Z
The annual GDP would be the **sum** of the 4 quarterly GDPs, not the average.
Art
CC BY-SA 4.0
2019-12-04T23:08:32.847Z
2019-12-04T23:08:32.847Z
schroederadrian
<p>How do I calcualte a countries Real GDP from QoQ changes?</p>

<p>Example - Australia
2018 - Real GDP was 1432195178668.32 $Billion
2019  Q1 was 0.5%<br>
2019  Q2 was 0.6%
2019  Q3 was 0.4%</p>

<p>How do I calculate real GDP on Q3?</p>

<gdp><economic-growth>
How to calculate Real GDP from quarterly change
imnew123
# How to calculate Real GDP from quarterly change

(Asked by: username_0 on 2019-12-04)

How do I calcualte a countries Real GDP from QoQ changes?

Example - Australia
2018 - Real GDP was 1432195178668.32 $Billion
2019 Q1 was 0.5%  
2019 Q2 was 0.6%
2019 Q3 was 0.4%

How do I calculate real GDP on Q3?

**Tags:** gdp, economic-growth

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## 1 answers

### Answer by username_1 on 2019-12-04. Score: 0 | Accepted answer

Assuming 1432195178668.32 was the last value in Q4 2018 you got, just calculate 1432195178668.32 \* (1.005) to get the 2019 Q1 Value, save the value. Then take 2019 Q1 \* (1.006) to get the next value etc. Easy to do via R or Excel.

Basically if you had an increase x just multiply by (1+x) where x is in decimals, so a change of -0.75 % becomes \* (1 - 0.0075)

Then, simply take the average of the four quarters if you want the annual value:
$$ \frac{(Q1.2019 + Q2.2019 + Q3.2019 + Q4.2019)} {4} $$

> **Comments:**
> **username_2**: The annual GDP would be the **sum** of the 4 quarterly GDPs, not the average.  

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