Yeast Converter
Fresh ⇄ active dry ⇄ instant, by weight.
That’s a lot of yeast — typical bread uses 0.5–2% of flour weight.
Instant
Example values≈ 1¾ tsp · ≈ ¾ packet
- Fresh
- 17.5g
- Packets
- ≈0.75
From 7 g active dry (1 packet). King Arthur pro ratio.
How this is calculated
By weight, fresh : active dry : instant = 1 : 0.40 : 0.33 (standard professional baking reference), so active dry → instant is ×0.83. With the 1:1 toggle on, active dry and instant swap 1:1 (standard home-baking guidance for modern yeast).
fresh = amount ÷ factor[source] · result = fresh × factor[target] · 1 packet = 7 g = 2¼ tsp (3.1 g/tsp)
Can I swap active dry and instant yeast?
Modern active dry yeast is close enough to instant that many bakers swap them 1:1. Professional references still use less instant (about 0.83× the active dry weight). Turn on the 1:1 toggle if your recipe assumes they’re interchangeable.
How much fresh yeast replaces a packet of dry?
A 7 g packet of active dry yeast equals about 17.5 g of fresh yeast; a 7 g packet of instant equals about 21 g fresh.