Converted Amount
1 SPK = 0.13875 JST
1.0 JST (JUST) = 7.2071 SPK ()
Automate SPK → JST in your app
Live SPK & JST rates via REST API — free plan, 1,000 calls/month
Get free API key →12H · 1D · 1W · 1M · 1Y ranges available
Converted Amount
1.0 JST (JUST) = 7.2071 SPK ()