# Computing a large amount of isochrones (500k)

**URL:** <https://ask.openrouteservice.org/t/computing-a-large-amount-of-isochrones-500k/4340>\
**Category:** isochrones\
**Created:** [November 17, 2022, 1:54pm UTC](https://ask.openrouteservice.org/t/computing-a-large-amount-of-isochrones-500k/4340 "2022-11-17T13:54:42Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![patrickuva](https://ask.openrouteservice.org/user_avatar/ask.openrouteservice.org/patrickuva/32/1932_2.png) [@patrickuva](https://ask.openrouteservice.org/u/patrickuva)\
**Post date:** [November 17, 2022, 1:54pm UTC](https://ask.openrouteservice.org/t/computing-a-large-amount-of-isochrones-500k/4340/1 "2022-11-17T13:54:43Z")

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Hi, for my research project I want to do calculations with different isochrones for a large number of houses in Amsterdam. However, there are 100,000 in total and I want to calculate 5 different ranges from 10 meters to 3000 meters. Is it possible to compute so many isochrones at once with the qgis plugin (500,000) and are there any extra things I need to do besides running the isochrones per layer function like I normally would with a small amount? Thanks in advance!

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**Author:** ![amandus](https://ask.openrouteservice.org/user_avatar/ask.openrouteservice.org/amandus/32/669_2.png) [@amandus](https://ask.openrouteservice.org/u/amandus)\
**Post date:** [November 17, 2022, 2:18pm UTC](https://ask.openrouteservice.org/t/computing-a-large-amount-of-isochrones-500k/4340/2 "2022-11-17T14:18:35Z")

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Hi @patrickuva,

best [set up your own ors instance](https://giscience.github.io/openrouteservice/installation/Installation-and-Usage.html) with area around Amsterdam, and set your local instance as the provider in the ORS Tools plugin.

Best regards

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**Author:** ![patrickuva](https://ask.openrouteservice.org/user_avatar/ask.openrouteservice.org/patrickuva/32/1932_2.png) [@patrickuva](https://ask.openrouteservice.org/u/patrickuva)\
**Post date:** [November 17, 2022, 2:31pm UTC](https://ask.openrouteservice.org/t/computing-a-large-amount-of-isochrones-500k/4340/3 "2022-11-17T14:31:50Z")

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Thanks, I will try that. After 94 minutes of running I was already hoping there was something that could make it go faster. Do you think it will go much faster with this?

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**Author:** ![amandus](https://ask.openrouteservice.org/user_avatar/ask.openrouteservice.org/amandus/32/669_2.png) [@amandus](https://ask.openrouteservice.org/u/amandus)\
**Post date:** [November 17, 2022, 2:51pm UTC](https://ask.openrouteservice.org/t/computing-a-large-amount-of-isochrones-500k/4340/4 "2022-11-17T14:51:13Z")

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yes because you are not restricted by our [API quota](https://openrouteservice.org/plans/).