ITZA Calculator

ITZA is a surveyor-abbreviation meaning “area in terms of Zone A”. If you do not understand the concept of zoning, then please click for an explanation. Any information you enter under Floor and Description is entirely up to you. The only columns involved in the calculation are Area (red) and R (green). Column R is the relativity for each zone Area. Entries in columns Area and R must be numbers only, no words. ITZA (blue) is the result. For how to use ITZA Calculator, here is an example:
  • In the first row:
    Under Floor, enter Ground (or G for short)
    Under Description, enter Zone A (or A for short)
    Under Area, enter 400.
    Under R, enter 1
    result ITZA = 4
    00 (400 divided by 1)
  • If you already know the ITZA, enter it under Area and R, and enter 1. The ITZA result will be the same. You can enter the Zone A £ value for the annual rent and monthly equivalent.
  • In the second row, repeat as for the first row, except:
    Under Description, enter Zone B (or B for short)
    Under Area, enter 500
    Under R, enter 2
    result ITZA = 250
    (250 divided by 2)
  • If part of a zone has different relativity, enter each area within that zone on a separate line. For example, on one line Zone B, Area 300, R 2. On the following line, Zone B, Area 200, R 3. (Result: Total ITZA 216.67)
  • In the third row,
    Under Floor, enter First
    Under Description, enter Ancillary
    Under Area, enter 300
    Under R, enter 10
    result ITZA = 30 (300 divided by 10)
  • ITZA Calculator isn’t just useful for zoning. For example, if you are using an overall methodology, enter the area under R, and enter 1: the result in ITZA will be the same area as you enter under Area. Helpful in adding up areas quickly and multiplying the total area by a £ value.
  • Next, scroll down to the bottom of the table where you’ll see that the total ITZA = 680

    In Enter Zone A £75.00
    result ERV pa (per annum) = £51,000.00
    result ERV pm (per month) = £4,250.00 (£51,000 divided by 12)
  • Different makes and models of electronic calculators can produce different results that might not be apparent when the result is rounded. The computer code for ITZA Calculator works with approximately 24 digits to the right of the decimal point, so there is a tendency for number rounding to go askew occasionally. Please adjust your browser width to display all five columns. ITZA Calculator viewed on a mobile or iPad, all five columns might not show: swipe to reveal.

ML Converter

To use ML Converter, you may enter an area in sqft or convert it to sqm. Or enter an area in sqm to convert it to sqft—the same principle for converting £psf to £psm and vice versa.

For conversion sqm to sqft, or sqft to sqm, the sqft or sqm is divided or multiplied by 10.763910417 respectively for the £psf and £psm, divided or multiplied by 10.76471 respectively. The result is to 2 places of decimals, rounded. Please note: different makes and models of electronic calculators can produce different results that might not be apparent when the result is rounded. For example, the computer code for the ML Converter and ITZA Calculator works with approximately 24 digits to the right of the decimal point, so there is a tendency for number rounding to go askew occasionally.
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Floor Item Area R ITZA
Total ITZA
Enter Zone A
£
ERV pa
£
ERV pm
£