1. **Problem:** Convert 7 kilometers to meters. 2. **Formula:** 1 kilometer = 1000 meters. 3. **Calculation:** $$7 \text{ km} = 7 \times 1000 \text{ m} = 7000 \text{ m}$$ 4. **Explanation:** To convert kilometers to meters, multiply the number of kilometers by 1000 because there are 1000 meters in one kilometer. **Final answer:** 7000 meters.