Number of students per functioning toilet during the reporting period.
Student to Toilet Ratio (PI4243)
Calculation:
- Reporting Format Unit Referenced within Metric Definition
- Metric Type Metric
- Metric Level Product/Service, Organization
- IRIS Metric Citation IRIS, 2021. Producer Price Premium (PI1568). v5.2.
Footnote
Organizations should footnote all assumptions used.
Usage Guidance
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This metric is intended to capture the availability of working toilets for students of an organization during the reporting period.
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In some contexts, this metric can serve as an indicator of whether the outcome being sought by an investor or organization is occurring (the WHAT dimension of impact). For more on the alignment of IRIS metrics to the five dimensions of impact, see IRIS+ and the Five Dimensions of Impact (https://iris.thegiin.org/document/iris-and-the-five-dimensions/). No single metric is sufficient to understand an impact; rather, metrics are selected as a set across all dimensions of impact. When possible, the selection of metrics to measure and describe the five dimensions should be based on best practice and evidence.
Impact Categories & Themes
SDG Goals & Targets
No Poverty
- SDG Target 1.4
Quality Education
- SDG Target 4.1
- SDG Target 4.2
- SDG Target 4.3
- SDG Target 4.4
- SDG Target 4.5
- SDG Target 4.a
Reduced Inequality
- SDG Target 10.2
- SDG Target 10.3
Sustainable Cities and Communities
- SDG Target 11.1
Metric History
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June 2022 - IRIS v5.3 Released (current version)
Immaterial change. Minor revision to usage guidance for clarity.
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January 2020 - IRIS v5.1 Released
No change.
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May 2019 - IRIS v5.0 Released
No change.
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March 2016 - IRIS v4.0 Released
Immaterial change. Metric definition language modified to improve accuracy.
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March 2014 - IRIS v3.0 Released
No change.
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November 2011 - IRIS v2.2 Released
No change.
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February 2011 - IRIS v2.1 Released
No change.
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September 2010 - IRIS v2.0 Released
Material change. IRIS ID changed due to framework upgrade. Metric modified to increase functionality.
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September 2009 - IRIS v1.0 Released
New metric. Student to Toilet Ratio (ED19) was developed via the Original IRIS Working Group.