diff --git a/modules/shared.py b/modules/shared.py
index 79fbf724..7d8116fb 100644
--- a/modules/shared.py
+++ b/modules/shared.py
@@ -139,6 +139,15 @@ ui_reorder_categories = [
     "scripts",
 ]
 
+aspect_ratio_defaults = [
+    "1:1",
+    "1:2",
+    "3:2",
+    "4:3",
+    "16:9",
+]
+
+
 cmd_opts.disable_extension_access = (cmd_opts.share or cmd_opts.listen or cmd_opts.server_name) and not cmd_opts.enable_insecure_extension_access
 
 devices.device, devices.device_interrogate, devices.device_gfpgan, devices.device_esrgan, devices.device_codeformer = \
@@ -456,6 +465,7 @@ options_templates.update(options_section(('ui', "User interface"), {
     "keyedit_precision_extra": OptionInfo(0.05, "Ctrl+up/down precision when editing <extra networks:0.9>", gr.Slider, {"minimum": 0.01, "maximum": 0.2, "step": 0.001}),
     "quicksettings": OptionInfo("sd_model_checkpoint", "Quicksettings list"),
     "ui_reorder": OptionInfo(", ".join(ui_reorder_categories), "txt2img/img2img UI item order"),
+    "aspect_ratios": OptionInfo(", ".join(aspect_ratio_defaults), "txt2img/img2img aspect ratios"),
     "ui_extra_networks_tab_reorder": OptionInfo("", "Extra networks tab order"),
     "localization": OptionInfo("None", "Localization (requires restart)", gr.Dropdown, lambda: {"choices": ["None"] + list(localization.localizations.keys())}, refresh=lambda: localization.list_localizations(cmd_opts.localizations_dir)),
 }))
diff --git a/modules/ui.py b/modules/ui.py
index f5df1ffe..b2964768 100644
--- a/modules/ui.py
+++ b/modules/ui.py
@@ -424,6 +424,20 @@ def ordered_ui_categories():
         yield category
 
 
+def aspect_ratio_list():
+    return [ratio.strip() for ratio in shared.opts.aspect_ratios.split(",")]
+
+
+def aspect_ratio_resize(w, h, bttn_val):
+    ratio = reduce(lambda bttn_val_width, bttn_val_height: int(bttn_val_width) / int(bttn_val_height), bttn_val.split(":"))
+    if ratio < 1:
+        return (round(h * ratio), h)
+    elif ratio > 1:
+        return (w, round(w * ratio))
+    else:
+        return [min(w,h)] * 2
+
+
 def get_value_for_setting(key):
     value = getattr(opts, key)
 
@@ -478,6 +492,10 @@ def create_ui():
                             with gr.Column(elem_id="txt2img_column_size", scale=4):
                                 width = gr.Slider(minimum=64, maximum=2048, step=8, label="Width", value=512, elem_id="txt2img_width")
                                 height = gr.Slider(minimum=64, maximum=2048, step=8, label="Height", value=512, elem_id="txt2img_height")
+                                with gr.Row():
+                                    for aspect_ratio in aspect_ratio_list():
+                                        aspect_ratio_bttn = ToolButton(value=aspect_ratio, elem_id=f"txt2img_ratio_{aspect_ratio.replace(':', '_')}")
+                                        aspect_ratio_bttn.click(aspect_ratio_resize, inputs=[width, height, aspect_ratio_bttn], outputs=[width, height])
 
                             res_switch_btn = ToolButton(value=switch_values_symbol, elem_id="txt2img_res_switch_btn")
                             if opts.dimensions_and_batch_together:
@@ -756,6 +774,11 @@ def create_ui():
                             with gr.Column(elem_id="img2img_column_size", scale=4):
                                 width = gr.Slider(minimum=64, maximum=2048, step=8, label="Width", value=512, elem_id="img2img_width")
                                 height = gr.Slider(minimum=64, maximum=2048, step=8, label="Height", value=512, elem_id="img2img_height")
+                                with gr.Row():
+                                    for aspect_ratio in aspect_ratio_list():
+                                        aspect_ratio_bttn = ToolButton(value=aspect_ratio, elem_id=f"img2img_ratio_{aspect_ratio.replace(':', '_')}")
+                                        aspect_ratio_bttn.click(aspect_ratio_resize, inputs=[width, height, aspect_ratio_bttn], outputs=[width, height])
+
 
                             res_switch_btn = ToolButton(value=switch_values_symbol, elem_id="img2img_res_switch_btn")
                             if opts.dimensions_and_batch_together: