Convert 1 Teaspoon to Milliliters

How big is 1 teaspoon? What is 1 teaspoon in milliliters? 1 tsp to mL conversion.
1 Teaspoon =
4.9289216 Milliliters
(rounded to 8 digits)
A U.S. teaspoon is a unit of volume equal to 1/3rd of a tablespoon or 1/48th of a U.S. cup.
A milliliter is a unit of volume equal to 1/1000th of a liter. It is the same as a cubic centimeter.
Teaspoons to Milliliters Conversions
(some results rounded)
tsp mL
1.00 4.9289
1.01 4.9782
1.02 5.0275
1.03 5.0768
1.04 5.1261
1.05 5.1754
1.06 5.2247
1.07 5.2739
1.08 5.3232
1.09 5.3725
1.10 5.4218
1.11 5.4711
1.12 5.5204
1.13 5.5697
1.14 5.6190
1.15 5.6683
1.16 5.7175
1.17 5.7668
1.18 5.8161
1.19 5.8654
1.20 5.9147
1.21 5.9640
1.22 6.0133
1.23 6.0626
1.24 6.1119
tsp mL
1.25 6.1612
1.26 6.2104
1.27 6.2597
1.28 6.3090
1.29 6.3583
1.30 6.4076
1.31 6.4569
1.32 6.5062
1.33 6.5555
1.34 6.6048
1.35 6.6540
1.36 6.7033
1.37 6.7526
1.38 6.8019
1.39 6.8512
1.40 6.9005
1.41 6.9498
1.42 6.9991
1.43 7.0484
1.44 7.0976
1.45 7.1469
1.46 7.1962
1.47 7.2455
1.48 7.2948
1.49 7.3441
tsp mL
1.50 7.3934
1.51 7.4427
1.52 7.4920
1.53 7.5413
1.54 7.5905
1.55 7.6398
1.56 7.6891
1.57 7.7384
1.58 7.7877
1.59 7.8370
1.60 7.8863
1.61 7.9356
1.62 7.9849
1.63 8.0341
1.64 8.0834
1.65 8.1327
1.66 8.1820
1.67 8.2313
1.68 8.2806
1.69 8.3299
1.70 8.3792
1.71 8.4285
1.72 8.4777
1.73 8.5270
1.74 8.5763
tsp mL
1.75 8.6256
1.76 8.6749
1.77 8.7242
1.78 8.7735
1.79 8.8228
1.80 8.8721
1.81 8.9213
1.82 8.9706
1.83 9.0199
1.84 9.0692
1.85 9.1185
1.86 9.1678
1.87 9.2171
1.88 9.2664
1.89 9.3157
1.90 9.3650
1.91 9.4142
1.92 9.4635
1.93 9.5128
1.94 9.5621
1.95 9.6114
1.96 9.6607
1.97 9.7100
1.98 9.7593
1.99 9.8086