diff --git a/caimira/apps/calculator/model_generator.py b/caimira/apps/calculator/model_generator.py
index 5931c980..5c0fe232 100644
--- a/caimira/apps/calculator/model_generator.py
+++ b/caimira/apps/calculator/model_generator.py
@@ -36,6 +36,7 @@ class FormData:
     specific_breaks: dict
     precise_activity: dict
     ceiling_height: float
+    conditional_probability_plot: bool
     exposed_coffee_break_option: str
     exposed_coffee_duration: int
     exposed_finish: minutes_since_midnight
@@ -104,6 +105,7 @@ class FormData:
         'precise_activity': '{}',
         'calculator_version': _NO_DEFAULT,
         'ceiling_height': 0.,
+        'conditional_probability_plot': False,
         'exposed_coffee_break_option': 'coffee_break_0',
         'exposed_coffee_duration': 5,
         'exposed_finish': '17:30',
@@ -900,6 +902,7 @@ def baseline_raw_form_data() -> typing.Dict[str, typing.Union[str, float]]:
         'air_changes': '',
         'air_supply': '',
         'ceiling_height': '',
+        'conditional_probability_plot': '0',
         'exposed_coffee_break_option': 'coffee_break_4',
         'exposed_coffee_duration': '10',
         'exposed_finish': '18:00',
diff --git a/caimira/apps/calculator/report_generator.py b/caimira/apps/calculator/report_generator.py
index 14531cbd..8c870a08 100644
--- a/caimira/apps/calculator/report_generator.py
+++ b/caimira/apps/calculator/report_generator.py
@@ -137,6 +137,7 @@ def calculate_report_data(form: FormData, model: models.ExposureModel) -> typing
     er = np.array(model.concentration_model.infected.emission_rate_when_present()).mean()
     exposed_occupants = model.exposed.number
     expected_new_cases = np.array(model.expected_new_cases()).mean()
+    uncertainties_plot_src = img2base64(_figure2bytes(uncertainties_plot(model))) if form.conditional_probability_plot else None
 
     return {
         "model_repr": repr(model),
@@ -158,7 +159,7 @@ def calculate_report_data(form: FormData, model: models.ExposureModel) -> typing
         "emission_rate": er,
         "exposed_occupants": exposed_occupants,
         "expected_new_cases": expected_new_cases,
-        "uncertainties_plot_scr": img2base64(_figure2bytes(uncertainties_plot([model])))
+        "uncertainties_plot_src": uncertainties_plot_src,
     }
 
 
diff --git a/caimira/apps/templates/base/calculator.form.html.j2 b/caimira/apps/templates/base/calculator.form.html.j2
index 448350b7..00dd2a37 100644
--- a/caimira/apps/templates/base/calculator.form.html.j2
+++ b/caimira/apps/templates/base/calculator.form.html.j2
@@ -406,6 +406,11 @@
       </div>
     </div>
 
+    <div class="form-check">
+      <input type="checkbox" id="conditional_probability_plot" class="tabbed form-check-input" name="conditional_probability_plot" value="1">
+      <label for="conditional_probability_plot" class="form-check-label col-sm-12">Generate conditional probability of infection plot</label>
+    </div>
+
     <span id="training_limit_error" class="red_text" hidden>Conference/Training activities limited to 1 infected<br></span>
 
     <hr width="80%">
diff --git a/caimira/apps/templates/base/calculator.report.html.j2 b/caimira/apps/templates/base/calculator.report.html.j2
index 1ba6f720..ed5c5cc5 100644
--- a/caimira/apps/templates/base/calculator.report.html.j2
+++ b/caimira/apps/templates/base/calculator.report.html.j2
@@ -193,7 +193,9 @@
 					</div>
 				</div>
 
-				<img src= "{{ uncertainties_plot_scr }}" />
+				{% if form.conditional_probability_plot %}
+					<img src= "{{ uncertainties_plot_src }}" />
+				{% endif %}
 
 				{% if form.short_range_option == "short_range_no" %}
 					<div class="card bg-light mb-3">