1. Useful English System Conversion Units Ratio of an igloo's circumference to its diameter: Eskimo Pi

2. Useful English System Conversion Units 2.4 statute miles of intravenous surgical tubing at Yale University Hospital: 1 I.V. League

3. Useful English System Conversion Units 2000 pounds of Chinese soup: Won ton

4. Useful English System Conversion Units 1 millionth mouthwash: 1 microscope

5. Useful English System Conversion Units Speed of a tortoise breaking the sound barrier: Mach Turtle

6. Useful English System Conversion Units Time it takes to sail 220 yards at 1 nautical mile per hour: Knot-furlong

7. Useful English System Conversion Units 365.25 days of drinking low-calorie beer because it's less filling: 1 lite year

8. Useful English System Conversion Units 16.5 feet in the Twilight Zone: 1 Rod Serling

9. Useful English System Conversion Units Half of a large intestine: 1 semicolon

10. Useful English System Conversion Units 1000 aches: 1 megahurtz

11. Useful English System Conversion Units Weight an evangelist carries with God: 1 billigram

12. Useful English System Conversion Units Basic unit of laryngitis: 1 hoarsepower

13. Useful English System Conversion Units Shortest distance between two jokes: A straight line

14. Useful English System Conversion Units Time between slipping on a peel and smacking the pavement: bananosecond

15. Useful English System Conversion Units A Half-Bath: 1 demijohn

16. Useful English System Conversion Units 453.6 graham crackers: 1 pound cake

17. Useful English System Conversion Units Given the old adage "a journey of a thousand miles begins with a single step," the first step of a one-mile journey: 1 Milwaukee

18. Useful English System Conversion Units 1 million microphones: 1 megaphone

19. Useful English System Conversion Units 1 million bicycles: 2 megacycles

20. Useful English System Conversion Units 365.25 days: 1 unicycle

21. Useful English System Conversion Units 2200 mockingbirds: two kilomockingbirds

22. Useful English System Conversion Units 10 cards: 1 decacards

23. Useful English System Conversion Units 1 kilogram of falling figs: 1 Fig Newton

24. Useful English System Conversion Units 1000 grams of wet socks: 1 literhosen

25. Useful English System Conversion Units 1 millionth of a fish: 1 microfiche

26. Useful English System Conversion Units 1 trillion pins: 1 terrapin

27. Useful English System Conversion Units 1 million billion picolos: 1 gigolo

28. Useful English System Conversion Units 10 rations: 1 decoration

29. Useful English System Conversion Units 100 rations: 1 C-ration

30. Useful English System Conversion Units 10 millipedes: 1 centipede

31. Useful English System Conversion Units 3 1/3 tridents: 1 decadent

32. Useful English System Conversion Units 10 monologs: 5 dialogs

33. Useful English System Conversion Units 5 dialogs: 1 decalog

34. Useful English System Conversion Units 2 monograms: 1 diagram

35. Useful English System Conversion Units 8 nickels: 2 paradigms

36. Useful English System Conversion Units 2 wharves: 1 paradox