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Unit Conversion

Unit Conversion problems involve converting quantities from one unit to another (e.g., km to miles, kg to grams, hours to minutes). These problems test your knowledge of conversion factors and ability to apply them accurately.

10Worksheets
200+Practice Questions
BeginnerDifficulty
1-2 hoursHours to Master

What You'll Learn

Introduction & Overview Why This Matters How to Solve Pro Tips & Tricks
Shortcut Methods Common Mistakes Practice Worksheets Exam Importance

Introduction to Unit Conversion

Unit Conversion problems involve converting quantities from one unit to another (e.g., km to miles, kg to grams, hours to minutes). These problems test your knowledge of conversion factors and ability to apply them accurately.

Prerequisites

Basic measurement units Conversion factors Multiplication and division Decimal operations
Why This Matters: Unit Conversion problems appear in 1-2 questions in SSC CGL, Banking PO, and Railways exams. They test basic measurement knowledge.

How to Solve Unit Conversion Problems

1

Step 1: Identify the given unit and the target unit

2

Step 2: Recall or find the conversion factor

3

Step 3: Determine whether to multiply or divide by the conversion factor

4

Step 4: For larger to smaller unit: multiply

5

Step 5: For smaller to larger unit: divide

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Step 6: Perform the calculation accurately

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Step 7: Round to required decimal places

Pro Strategy: Create a conversion chain: multiply by conversion factors to cancel units. Remember: multiply when going to smaller units, divide when going to larger units.

Example Problem

Example: Convert 15 kilometers to miles (1 km = 0.621371 miles). Solution: Step 1: Given: 15 km, Target: miles Step 2: Conversion factor: 1 km = 0.621371 miles Step 3: Multiply (km to miles): 15 × 0.621371 Step 4: = 9.320565 miles Step 5: Round to 2 decimals: 9.32 miles Answer: 9.32 miles

Pro Tips & Tricks

  • Length: 1 km = 1000 m, 1 m = 100 cm, 1 cm = 10 mm
  • Weight: 1 kg = 1000 g, 1 g = 1000 mg
  • Time: 1 hour = 60 minutes, 1 minute = 60 seconds
  • Volume: 1 L = 1000 mL
  • For km to miles: multiply by 0.6214 (or multiply by 5/8 for approximation)
  • For miles to km: multiply by 1.609 (or multiply by 8/5)

Shortcut Methods to Solve Faster

km to miles: × 0.6214 (or ÷ 1.609)
kg to pounds: × 2.205
Celsius to Fahrenheit: (°C × 9/5) + 32
Fahrenheit to Celsius: (°F - 32) × 5/9

Common Mistakes to Avoid

Multiplying when should divide (and vice versa)
Using wrong conversion factor
Forgetting to convert all units consistently
Misplacing decimal points in conversion

Exam Importance

Unit Conversion is an important topic for various competitive exams. Here's how frequently it appears:

SSC CGL
1-2 questions
BANKING PO
1-2 questions
RAILWAYS RRB
2-3 questions
CAT
0-1 questions
INSURANCE
1-2 questions

Ready to Master Unit Conversion?

Start with Worksheet 1 and work your way up to expert level! Each worksheet includes:

20 practice questions
Detailed solutions
Step-by-step explanations
Start Practicing Now