| US teaspoon | 1 tsp(US) | 2 tsp(US) | 3 tsp(US) | 4 tsp(US) | 5 tsp(US) | 6 tsp(US) | 7 tsp(US) | 8 tsp(US) | 9 tsp(US) | 10 tsp(US) | 11 tsp(US) | 12 tsp(US) | 13 tsp(US) | 14 tsp(US) | 15 tsp(US) | 16 tsp(US) | 17 tsp(US) | 18 tsp(US) | 19 tsp(US) | 20 tsp(US) | 21 tsp(US) | 22 tsp(US) | 23 tsp(US) | 24 tsp(US) | 25 tsp(US) | 26 tsp(US) | 27 tsp(US) | 28 tsp(US) | 29 tsp(US) | 30 tsp(US) | 31 tsp(US) | 32 tsp(US) | 33 tsp(US) | 34 tsp(US) | 35 tsp(US) | 36 tsp(US) | 37 tsp(US) | 38 tsp(US) | 39 tsp(US) | 40 tsp(US) | 41 tsp(US) | 42 tsp(US) | 43 tsp(US) | 44 tsp(US) | 45 tsp(US) | 46 tsp(US) | 47 tsp(US) | 48 tsp(US) | 49 tsp(US) | 50 tsp(US) | 51 tsp(US) | 52 tsp(US) | 53 tsp(US) | 54 tsp(US) | 55 tsp(US) | 56 tsp(US) | 57 tsp(US) | 58 tsp(US) | 59 tsp(US) | 60 tsp(US) | 61 tsp(US) | 62 tsp(US) | 63 tsp(US) | 64 tsp(US) | 65 tsp(US) | 66 tsp(US) | 67 tsp(US) | 68 tsp(US) | 69 tsp(US) | 70 tsp(US) | 71 tsp(US) | 72 tsp(US) | 73 tsp(US) | 74 tsp(US) | 75 tsp(US) | 76 tsp(US) | 77 tsp(US) | 78 tsp(US) | 79 tsp(US) | 80 tsp(US) | 81 tsp(US) | 82 tsp(US) | 83 tsp(US) | 84 tsp(US) | 85 tsp(US) | 86 tsp(US) | 87 tsp(US) | 88 tsp(US) | 89 tsp(US) | 90 tsp(US) | 91 tsp(US) | 92 tsp(US) | 93 tsp(US) | 94 tsp(US) | 95 tsp(US) | 96 tsp(US) | 97 tsp(US) | 98 tsp(US) | 99 tsp(US) | 100 tsp(US) |
| US legal cup | 0.0205372 c (US Legal) | 0.0410743 c (US Legal) | 0.0616115 c (US Legal) | 0.0821487 c (US Legal) | 0.1026859 c (US Legal) | 0.1232230 c (US Legal) | 0.1437602 c (US Legal) | 0.1642974 c (US Legal) | 0.1848346 c (US Legal) | 0.2053717 c (US Legal) | 0.2259089 c (US Legal) | 0.2464461 c (US Legal) | 0.2669833 c (US Legal) | 0.2875204 c (US Legal) | 0.3080576 c (US Legal) | 0.3285948 c (US Legal) | 0.3491319 c (US Legal) | 0.3696691 c (US Legal) | 0.3902063 c (US Legal) | 0.4107435 c (US Legal) | 0.4312806 c (US Legal) | 0.4518178 c (US Legal) | 0.4723550 c (US Legal) | 0.4928922 c (US Legal) | 0.5134293 c (US Legal) | 0.5339665 c (US Legal) | 0.5545037 c (US Legal) | 0.5750409 c (US Legal) | 0.5955780 c (US Legal) | 0.6161152 c (US Legal) | 0.6366524 c (US Legal) | 0.6571895 c (US Legal) | 0.6777267 c (US Legal) | 0.6982639 c (US Legal) | 0.7188011 c (US Legal) | 0.7393382 c (US Legal) | 0.7598754 c (US Legal) | 0.7804126 c (US Legal) | 0.8009498 c (US Legal) | 0.8214869 c (US Legal) | 0.8420241 c (US Legal) | 0.8625613 c (US Legal) | 0.8830985 c (US Legal) | 0.9036356 c (US Legal) | 0.9241728 c (US Legal) | 0.9447100 c (US Legal) | 0.9652471 c (US Legal) | 0.9857843 c (US Legal) | 1.0063215 c (US Legal) | 1.0268587 c (US Legal) | 1.0473958 c (US Legal) | 1.0679330 c (US Legal) | 1.0884702 c (US Legal) | 1.1090074 c (US Legal) | 1.1295445 c (US Legal) | 1.1500817 c (US Legal) | 1.1706189 c (US Legal) | 1.1911561 c (US Legal) | 1.2116932 c (US Legal) | 1.2322304 c (US Legal) | 1.2527676 c (US Legal) | 1.2733047 c (US Legal) | 1.2938419 c (US Legal) | 1.3143791 c (US Legal) | 1.3349163 c (US Legal) | 1.3554534 c (US Legal) | 1.3759906 c (US Legal) | 1.3965278 c (US Legal) | 1.4170650 c (US Legal) | 1.4376021 c (US Legal) | 1.4581393 c (US Legal) | 1.4786765 c (US Legal) | 1.4992137 c (US Legal) | 1.5197508 c (US Legal) | 1.5402880 c (US Legal) | 1.5608252 c (US Legal) | 1.5813623 c (US Legal) | 1.6018995 c (US Legal) | 1.6224367 c (US Legal) | 1.6429739 c (US Legal) | 1.6635110 c (US Legal) | 1.6840482 c (US Legal) | 1.7045854 c (US Legal) | 1.7251226 c (US Legal) | 1.7456597 c (US Legal) | 1.7661969 c (US Legal) | 1.7867341 c (US Legal) | 1.8072713 c (US Legal) | 1.8278084 c (US Legal) | 1.8483456 c (US Legal) | 1.8688828 c (US Legal) | 1.8894199 c (US Legal) | 1.9099571 c (US Legal) | 1.9304943 c (US Legal) | 1.9510315 c (US Legal) | 1.9715686 c (US Legal) | 1.9921058 c (US Legal) | 2.0126430 c (US Legal) | 2.0331802 c (US Legal) | 2.0537173 c (US Legal) |
A teaspoon is an item of cutlery, a measuring instrument, of approximately 5ml, or a unit of measurement of volume (usually abbreviated tsp.).
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| US teaspoon | tsp(US) | ≡ 1⁄6 US fl oz | = 4.92892159375×10−6 m3 | Imperial/US |
| US teaspoons | US legal cups | US teaspoons | US legal cups |
|---|---|---|---|
| 1 | = 0.020537173307292 | 6 | = 0.12322303984375 |
| 2 | = 0.041074346614583 | 7 | = 0.14376021315104 |
| 3 | = 0.061611519921875 | 8 | = 0.16429738645833 |
| 4 | = 0.082148693229167 | 9 | = 0.18483455976562 |
| 5 | = 0.10268586653646 | 10 | = 0.20537173307292 |
The cup currently used in the United States for nutrition labelling is defined in United States law as 240 ml.
| 1 U.S. "legal" cup | = | 240 | millilitres |
| = | 16 | international tablespoons | |
| = | 12 | Australian tablespoons | |
| ≈ | 8.12 | U.S. customary fluid ounces | |
| ≈ | 8.45 | imperial fluid ounces |
| Name of unit | Symbol | Definition | Relation to SI units | Unit System |
|---|---|---|---|---|
| US legal cup | c (US Legal) | ≡ 240 mL | = 2.4×10−4 m3 | Imperial/US |
| US legal cups | US teaspoons | US legal cups | US teaspoons |
|---|---|---|---|
| 1 | = 48.692192690654 | 6 | = 292.15315614392 |
| 2 | = 97.384385381308 | 7 | = 340.84534883458 |
| 3 | = 146.07657807196 | 8 | = 389.53754152523 |
| 4 | = 194.76877076262 | 9 | = 438.22973421589 |
| 5 | = 243.46096345327 | 10 | = 486.92192690654 |
| US teaspoons | US legal cups |
|---|---|
| 1 | = 0.0205372 |
| 48.6921927 | = 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 …) |