Just to let you know, one teaspoon equals 5mL. On the other hand, one tablespoon equals 15mL. I suggest that you get an accurate oral syringe to dispense the quantity of 1.25mL, which is actually 1/4 of a teaspoon. You can find one at your local pharmacy and they typically come with many children's medications if you need one.
* 20 ml = 4.05768272 US teaspoons
25 mL = 5.07 teaspoons.
1.01442068 US teaspoons ==
6.16 mls 1 milliliter equals 0.202 US teaspoons. 1 teaspoon is 4.928 milliliters
12.2 teaspoons to 60mL
5 ml equals a teaspoon.
167.58 ml 1 milliliter equals 0.202 US teaspoons. 1 teaspoon is 4.92 milliliters
1900 milliliters equals 385.48 US teaspoons or 320.979 Imperial teaspoons.
39.43 ml 1 milliliter equals 0.202 US teaspoons. 1 teaspoon is 4.92 milliliters
45ml = 45cc = 9 metric teaspoons
59.14 ml 1 milliliter equals 0.202 US teaspoons. 1 teaspoon is 4.92 milliliters
1 tbs = 15 ml 1 tbs = 3 tsp 3 tsp = 15 ml 125 tsp/15 ml = 8 1/3 tsp eight and one third teaspoons