CWICR Unit Converter

Name: cwicr-unit-converter
Rating: 5 (190 reviews)
Author: datadrivenconstruction

Business Case

Problem Statement

Construction data comes in various unit systems:

Metric vs Imperial measurements
Different unit conventions by trade
BIM quantities need normalization
Regional standards differ

Solution

Comprehensive unit conversion for construction quantities, normalizing data for CWICR integration and analysis.

Business Value

Accuracy - Eliminate unit conversion errors
Consistency - Standardize across projects
Integration - BIM to cost data alignment
Global - Support international projects

Technical Implementation

import pandas as pd
import numpy as np
from typing import Dict, Any, List, Optional, Tuple, Union
from dataclasses import dataclass
from enum import Enum


class UnitCategory(Enum):
    """Categories of measurement units."""
    LENGTH = "length"
    AREA = "area"
    VOLUME = "volume"
    WEIGHT = "weight"
    TIME = "time"
    QUANTITY = "quantity"


class UnitSystem(Enum):
    """Unit systems."""
    METRIC = "metric"
    IMPERIAL = "imperial"
    MIXED = "mixed"


@dataclass
class UnitConversion:
    """Unit conversion result."""
    original_value: float
    original_unit: str
    converted_value: float
    target_unit: str
    conversion_factor: float
    category: UnitCategory


# Conversion factors to base units
# Base units: meter (length), m² (area), m³ (volume), kg (weight), hour (time)

CONVERSIONS = {
    # Length to meters
    'm': {'factor': 1.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'meter': {'factor': 1.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'meters': {'factor': 1.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'cm': {'factor': 0.01, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'mm': {'factor': 0.001, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'km': {'factor': 1000.0, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'ft': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'feet': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'foot': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'in': {'factor': 0.0254, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'inch': {'factor': 0.0254, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'inches': {'factor': 0.0254, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'yd': {'factor': 0.9144, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'yard': {'factor': 0.9144, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'yards': {'factor': 0.9144, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'mi': {'factor': 1609.344, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'mile': {'factor': 1609.344, 'category': UnitCategory.LENGTH, 'base': 'm'},
    'lf': {'factor': 0.3048, 'category': UnitCategory.LENGTH, 'base': 'm'},  # Linear foot

    # Area to m²
    'm2': {'factor': 1.0, 'category': UnitCategory.AREA, 'base': 'm2'},
    'm²': {'factor': 1.0, 'category': UnitCategory.AREA, 'base': 'm2'},
    'sqm': {'factor': 1.0, 'category': UnitCategory.AREA, 'base': 'm2'},
    'cm2': {'factor': 0.0001, 'category': UnitCategory.AREA, 'base': 'm2'},
    'mm2': {'factor': 0.000001, 'category': UnitCategory.AREA, 'base': 'm2'},
    'ha': {'factor': 10000.0, 'category': UnitCategory.AREA, 'base': 'm2'},
    'hectare': {'factor': 10000.0, 'category': UnitCategory.AREA, 'base': 'm2'},
    'ft2': {'factor': 0.092903, 'category': UnitCategory.AREA, 'base': 'm2'},
    'sf': {'factor': 0.092903, 'category': UnitCategory.AREA, 'base': 'm2'},
    'sqft': {'factor': 0.092903, 'category': UnitCategory.AREA, 'base': 'm2'},
    'yd2': {'factor': 0.836127, 'category': UnitCategory.AREA, 'base': 'm2'},
    'sy': {'factor': 0.836127, 'category': UnitCategory.AREA, 'base': 'm2'},  # Square yard
    'acre': {'factor': 4046.86, 'category': UnitCategory.AREA, 'base': 'm2'},

    # Volume to m³
    'm3': {'factor': 1.0, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'm³': {'factor': 1.0, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'cbm': {'factor': 1.0, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'l': {'factor': 0.001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'liter': {'factor': 0.001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'litre': {'factor': 0.001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'ml': {'factor': 0.000001, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'ft3': {'factor': 0.0283168, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'cf': {'factor': 0.0283168, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'cuft': {'factor': 0.0283168, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'yd3': {'factor': 0.764555, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'cy': {'factor': 0.764555, 'category': UnitCategory.VOLUME, 'base': 'm3'},  # Cubic yard
    'cuyd': {'factor': 0.764555, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'gal': {'factor': 0.00378541, 'category': UnitCategory.VOLUME, 'base': 'm3'},
    'gallon': {'factor': 0.00378541, 'category': UnitCategory.VOLUME, 'base': 'm3'},

    # Weight to kg
    'kg': {'factor': 1.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'kilogram': {'factor': 1.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'g': {'factor': 0.001, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'gram': {'factor': 0.001, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'mg': {'factor': 0.000001, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    't': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'ton': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},  # Metric ton
    'tonne': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'mt': {'factor': 1000.0, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'lb': {'factor': 0.453592, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'lbs': {'factor': 0.453592, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'pound': {'factor': 0.453592, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'oz': {'factor': 0.0283495, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'ounce': {'factor': 0.0283495, 'category': UnitCategory.WEIGHT, 'base': 'kg'},
    'st': {'factor': 907.185, 'category': UnitCategory.WEIGHT, 'base': 'kg'},  # Short ton (US)

    # Time to hours
    'hr': {'factor': 1.0, 'category': UnitCategory.TIME, 'base': 'hr'},
    'hour': {'factor': 1.0, 'category': UnitCategory.TIME, 'base': 'hr'},
    'hours': {'factor': 1.0, 'category': UnitCategory.TIME, 'base': 'hr'},
    'h': {'factor': 1.0, 'category': UnitCategory.TIME, 'base': 'hr'},
    'min': {'factor': 1/60, 'category': UnitCategory.TIME, 'base': 'hr'},
    'minute': {'factor': 1/60, 'category': UnitCategory.TIME, 'base': 'hr'},
    'day': {'factor': 8.0, 'category': UnitCategory.TIME, 'base': 'hr'},  # 8-hour workday
    'days': {'factor': 8.0, 'category': UnitCategory.TIME, 'base': 'hr'},
    'week': {'factor': 40.0, 'category': UnitCategory.TIME, 'base': 'hr'},  # 40-hour week

    # Quantity (no conversion, just counting)
    'ea': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'each': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'pc': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'pcs': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'piece': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'pieces': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'no': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'nr': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'set': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'lot': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},
    'ls': {'factor': 1.0, 'category': UnitCategory.QUANTITY, 'base': 'ea'},  # Lump sum
}


class CWICRUnitCon

cwicr-unit-converter

How to add

Drop this on your repo README

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