Basic data

At Basic Data you enter diverse data which are used to make relative graphs and calculate the indicators.

Production Volume

When you create your barometer, one production volume is usually selected; which one depends on your sector. This production volume is also used in sector averages. Examples are ‘occupied beds’ for healthcare, and ‘visitors’ for theaters. When you go to fine-tuning, you may find one or more ‘standard’ production volumes that you can use.

If you want more or different production volumes, you can add your own production volumes. Go to ‘fine-tuning > organization’. In the top right corner, you can ‘add’ an item. You can customize the title and unit of the production volume and make it bilingual if desired.

The operation of production volume has changed as of October 2025. You can read the details under “production volume October 2025”: P5926.

Floor area

In the past, business floor space was expressed in m² GFA (gross floor area). Nowadays, m² of usable floor area is the standard. This is on average 90% of the gross floor area.

The Envirometer will use usable floor area as default from February 8, 2024. For this purpose, a conversion from m² gross floor area to ‘m²’ has been added with a factor of 0.9. If you had previously entered values, these have been converted.
Users who started before February 2024 will see a (blue) warning about the changed floor area unit after logging in. Until you explicitly click away this warning, it will return to the home screen as a reminder to check whether the automatic conversion from gross floor area to user area is correct for your properties.

Tips for checking/improving m² usable floor area

There are two situations:

1. If you entered m² gross floor area you can:
   • Leave the calculated user area as a good estimate.
   • Look up what the m² user surface is and fill it in. Make sure that you also set the unit to m² (via the … behind the unit).
2. If the value entered was m² Usable floor area, you can reverse the conversion by changing the unit from m² gross floor area to m². (via the … behind the unit).

• In the Netherlands you may use the “BAG viewer(bag-viewer)”: https://bagviewer.kadaster.nl/lvbag/bag-viewer/ to find the m² user surface area of each building as known to the land registry.
• If you want to check more years and/or more barometers, it is useful to see them together.
  • Go to fill in > company details and click on floor area company building then you will see all years in ons screen.
  • If you have more barometers, you can use ‘all barometers’ at the top right, then you will get all items underneath each other.
• Tip: make a note of which adjustment you have made for at least one of the details.