Rice cup or cup set (and paddle/spoon if available) (Kettleshulme SK23)

I have acquired a rice cooker. But the instructions use Asian rice cup measurements rather than American cups. The measuring cup (and spoon/paddle) that came with it was lost unfortunately. A rice cup is 180ml not 240ml. If anyone has a suitable cup or cups, I'd be grateful to have them. It would save the trouble of measuring in a jug each time I use it.