Depends where in the world you are and how big your cup is.
Recipes were designed to use cups as a measure because as long as the same cup was used the proportions remained the same regardless of the cup size and each recipe could be followed exactly.
Interfering busybodies ruined a perfectly good system by deciding a cup should be approximately half a pint or 8 fluid ounces, a good deal larger than the average teacup and as you will see in the chart of new-fangled measures below, they decided a teacup is actually half a cup...
I think you should now be equipped to answer your own question...
Dry & Fluid Measures
Unit
Abbrev.
Defined
fl oz
mL
[note 1]
Binary Submultiples
drop
dr., gt., gtt. (plural)
1?96 tsp
1?576
smidgen
smdg., smi.
3?128 tsp
1?256
0.115522
2 smidgens = 1 pinch
pinch
pn.
3?64 tsp
1?128
0.231043
2 pinches = 1 dash
dash
ds.
3?32 tsp
1?64
0.462086
2 dashes = 1 saltspoon
saltspoon or
scruple
ssp.
3?16 tsp
1?32
0.924173
2 saltspoons = 1 coffeespoon
coffeespoon
3?8 tsp
1?16
1.84835
2 coffeespoons = 1 fluid dram
Fluid dram [note 2]
3?4 tsp
1?8
3.69669
2
fluid drams = 1
dessertspoon (Australia)
teaspoon (culinary)[note 3]
tsp. or t.
1?3 tbsp
1?6
4.92892
2 teaspoons = 1
dessertspoon
dessertspoon [20]
dsp., dssp. or dstspn.
2 tsp
1?3
tablespoon
tbsp. or T.
1?16 cup
1?2
14.7868
2 tablespoons = 1 fluid ounce
fluid ounce
fl.oz. or oz.
1?8 cup
1
29.5735
2 fluid ounce = 1 wineglass
wineglass
wgf.
1?4 cup
2
59.1471
2 wineglasses = 1 teacup
gill or
teacup
tcf.
1?2 cup
4
118.294
2 teacups = 1 cup
cup
C
1?2 pint
8
236.588
2 cups = 1 pint
pint
pt.
1?2 qt
16
473.176
2 pints = 1 quart
quart
qt.
1?4 gal
32
946.353
2 quarts = 1 pottle
pottle
pot.
2 qt
64
1892.71
2 pottles = 1 gallon
gallon
gal.
231 in3
128
3,785.41
2 gallons = 1 peck
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