---
layout: forum
title: 'Re: Proof-of-work difficulty increasing'
grand_parent: Forum Posts
parent: Bitcoin Forum
nav_order: 77
date: 2010-02-25 23:06:29 UTC
original: https://bitcointalk.org/index.php?topic=43.msg540#msg540
---

# Re: Proof-of-work difficulty increasing

---

```
Re: Proof-of-work difficulty increasing
February 25, 2010, 11:06:29 PM

The formula is based on the time it takes to generate 2016 blocks.  The difficulty is multiplied by 14/(actual days taken).  For instance, this time it took 9.4 days, so the calculation was 14/9.4 = 1.49.  Previous difficulty 2.53 * 1.49 = 3.78, a 49% increase.

I don't know what you're talking about accepting easier difficulties.
```