quad | 1 quad | 2 quad | 3 quad | 4 quad | 5 quad | 6 quad | 7 quad | 8 quad | 9 quad | 10 quad | 11 quad | 12 quad | 13 quad | 14 quad | 15 quad | 16 quad | 17 quad | 18 quad | 19 quad | 20 quad | 21 quad | 22 quad | 23 quad | 24 quad | 25 quad | 26 quad | 27 quad | 28 quad | 29 quad | 30 quad | 31 quad | 32 quad | 33 quad | 34 quad | 35 quad | 36 quad | 37 quad | 38 quad | 39 quad | 40 quad | 41 quad | 42 quad | 43 quad | 44 quad | 45 quad | 46 quad | 47 quad | 48 quad | 49 quad | 50 quad | 51 quad | 52 quad | 53 quad | 54 quad | 55 quad | 56 quad | 57 quad | 58 quad | 59 quad | 60 quad | 61 quad | 62 quad | 63 quad | 64 quad | 65 quad | 66 quad | 67 quad | 68 quad | 69 quad | 70 quad | 71 quad | 72 quad | 73 quad | 74 quad | 75 quad | 76 quad | 77 quad | 78 quad | 79 quad | 80 quad | 81 quad | 82 quad | 83 quad | 84 quad | 85 quad | 86 quad | 87 quad | 88 quad | 89 quad | 90 quad | 91 quad | 92 quad | 93 quad | 94 quad | 95 quad | 96 quad | 97 quad | 98 quad | 99 quad | 100 quad |
british thermal unit | 1.0 × 1015 BTUIT | 2.0 × 1015 BTUIT | 3.0 × 1015 BTUIT | 4.0 × 1015 BTUIT | 5.0 × 1015 BTUIT | 6.0 × 1015 BTUIT | 7.0 × 1015 BTUIT | 8.0 × 1015 BTUIT | 9.0 × 1015 BTUIT | 1.0 × 1016 BTUIT | 1.1 × 1016 BTUIT | 1.2 × 1016 BTUIT | 1.3 × 1016 BTUIT | 1.4 × 1016 BTUIT | 1.5 × 1016 BTUIT | 1.6 × 1016 BTUIT | 1.7 × 1016 BTUIT | 1.8 × 1016 BTUIT | 1.9 × 1016 BTUIT | 2.0 × 1016 BTUIT | 2.1 × 1016 BTUIT | 2.2 × 1016 BTUIT | 2.3 × 1016 BTUIT | 2.4 × 1016 BTUIT | 2.5 × 1016 BTUIT | 2.6 × 1016 BTUIT | 2.7 × 1016 BTUIT | 2.8 × 1016 BTUIT | 2.9 × 1016 BTUIT | 3.0 × 1016 BTUIT | 3.1 × 1016 BTUIT | 3.2 × 1016 BTUIT | 3.3 × 1016 BTUIT | 3.4 × 1016 BTUIT | 3.5 × 1016 BTUIT | 3.6 × 1016 BTUIT | 3.7 × 1016 BTUIT | 3.8 × 1016 BTUIT | 3.9 × 1016 BTUIT | 4.0 × 1016 BTUIT | 4.1 × 1016 BTUIT | 4.2 × 1016 BTUIT | 4.3 × 1016 BTUIT | 4.4 × 1016 BTUIT | 4.5 × 1016 BTUIT | 4.6 × 1016 BTUIT | 4.7 × 1016 BTUIT | 4.8 × 1016 BTUIT | 4.9 × 1016 BTUIT | 5.0 × 1016 BTUIT | 5.1 × 1016 BTUIT | 5.2 × 1016 BTUIT | 5.3 × 1016 BTUIT | 5.4 × 1016 BTUIT | 5.5 × 1016 BTUIT | 5.6 × 1016 BTUIT | 5.7 × 1016 BTUIT | 5.8 × 1016 BTUIT | 5.9 × 1016 BTUIT | 6.0 × 1016 BTUIT | 6.1 × 1016 BTUIT | 6.2 × 1016 BTUIT | 6.3 × 1016 BTUIT | 6.4 × 1016 BTUIT | 6.5 × 1016 BTUIT | 6.6 × 1016 BTUIT | 6.7 × 1016 BTUIT | 6.8 × 1016 BTUIT | 6.9 × 1016 BTUIT | 7.0 × 1016 BTUIT | 7.1 × 1016 BTUIT | 7.2 × 1016 BTUIT | 7.3 × 1016 BTUIT | 7.4 × 1016 BTUIT | 7.5 × 1016 BTUIT | 7.6 × 1016 BTUIT | 7.7 × 1016 BTUIT | 7.8 × 1016 BTUIT | 7.9 × 1016 BTUIT | 8.0 × 1016 BTUIT | 8.1 × 1016 BTUIT | 8.2 × 1016 BTUIT | 8.3 × 1016 BTUIT | 8.4 × 1016 BTUIT | 8.5 × 1016 BTUIT | 8.6 × 1016 BTUIT | 8.7 × 1016 BTUIT | 8.8 × 1016 BTUIT | 8.9 × 1016 BTUIT | 9.0 × 1016 BTUIT | 9.1 × 1016 BTUIT | 9.2 × 1016 BTUIT | 9.3 × 1016 BTUIT | 9.4 × 1016 BTUIT | 9.5 × 1016 BTUIT | 9.6 × 1016 BTUIT | 9.7 × 1016 BTUIT | 9.8 × 1016 BTUIT | 9.9 × 1016 BTUIT | 1.0 × 1017 BTUIT |
A quad is a unit of energy equal to 1015 (a short-scale quadrillion) BTU, or 1.055 × 1018 joules (1.055 exajoules or EJ) in SI units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
quad | ≡ 1015 BTUIT | = 1.05505585262×1018 J | Imperial/US |
quads | british thermal units | quads | british thermal units |
---|---|---|---|
1 | = 1.0E+15 | 6 | = 6.0E+15 |
2 | = 2.0E+15 | 7 | = 7.0E+15 |
3 | = 3.0E+15 | 8 | = 8.0E+15 |
4 | = 4.0E+15 | 9 | = 9.0E+15 |
5 | = 5.0E+15 | 10 | = 1.0E+16 |
The British thermal unit (Btu or BTU) is a traditional unit of heat; it is defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It is part of the United States customary units.
Name of unit | Symbol | Definition | Relation to SI units | Unit System |
---|---|---|---|---|
british thermal unit | BTUIT | = 1.05505585262×103 J | = 1.05505585262×103 J | Imperial/US |
british thermal units | quads | british thermal units | quads |
---|---|---|---|
1 | = 1.0E-15 | 6 | = 6.0E-15 |
2 | = 2.0E-15 | 7 | = 7.0E-15 |
3 | = 3.0E-15 | 8 | = 8.0E-15 |
4 | = 4.0E-15 | 9 | = 9.0E-15 |
5 | = 5.0E-15 | 10 | = 1.0E-14 |
quads | british thermal units |
---|---|
1 | = 1.0 × 1015 |
1.0 × 10-15 | = 1 |
Symbol | Definition |
---|---|
≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |