Create app.py

app.py

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+import streamlit as st
+
+st.set_page_config(page_title="Block Quantity Calculator", layout="centered")
+
+st.title("🧱 Blocks Quantity Calculation")
+
+unit = st.selectbox("Select Unit", ["m", "cm"])
+
+def convert_to_m(val, unit):
+    return val / 100 if unit == "cm" else val
+
+st.subheader("Dimension of Wall")
+wall_length = convert_to_m(st.number_input("Wall Length (L)", value=0.0), unit)
+wall_height = convert_to_m(st.number_input("Wall Height (H)", value=0.0), unit)
+wall_thickness = convert_to_m(st.number_input("Wall Thickness (T)", value=0.0), unit)
+
+st.subheader("Dimension of Block")
+block_length = convert_to_m(st.number_input("Block Length", value=0.0), unit)
+block_width = convert_to_m(st.number_input("Block Width", value=0.0), unit)
+block_height = convert_to_m(st.number_input("Block Height", value=0.0), unit)
+
+st.subheader("Mortar Ratio")
+cement_ratio = st.number_input("Cement", value=1.0)
+sand_ratio = st.number_input("Sand", value=2.5)
+ratio_total = cement_ratio + sand_ratio
+
+subtract_area = st.number_input("Subtract Area (Windows/Doors) in m²", value=0.0)
+block_price = st.number_input("Block Price (per unit)", value=0.0)
+
+if st.button("Calculate"):
+    wall_volume = wall_length * wall_height * wall_thickness - subtract_area
+    block_volume = block_length * block_height * block_width
+    number_of_blocks = wall_volume / block_volume
+    dry_mortar_volume = wall_volume * 0.21
+    cement_volume = dry_mortar_volume * (cement_ratio / ratio_total)
+    sand_volume = dry_mortar_volume * (sand_ratio / ratio_total)
+    cement_bags = cement_volume / 0.0347
+    total_cost = number_of_blocks * block_price
+
+    st.markdown("### 📋 Results")
+    st.write(f"**Wall Volume:** {wall_volume:.2f} m³")
+    st.write(f"**Number of Blocks:** {number_of_blocks:.2f}")
+    st.write(f"**Dry Mortar:** {dry_mortar_volume:.2f} m³")
+    st.write(f"**Cement Volume:** {cement_volume:.2f} m³")
+    st.write(f"**Sand Volume:** {sand_volume:.2f} m³")
+    st.write(f"**Cement Bags (50kg):** {cement_bags:.2f} bags")
+    st.write(f"**Blocks Cost:** ${total_cost:.2f}")