{"as_of":"2026-10-25T13:39:16.173Z","inputs":{"asic":"Antminer S21 XP","units":1,"hashrate_th_per_unit":270,"power_w_per_unit":3645,"fleet_hashrate_th":270,"fleet_power_w":3645,"electricity_usd_kwh":0.06,"pool_fee_rate":0.02},"market":{"btc_price_usd":80209,"hashprice_usd_ph_day":36.01,"hashprice_btc_ph_day":0.0004489521713969655,"difficulty":140577680051919.6,"network_hashrate_eh":1051.94,"source":"Self-hosted Bitcoin Core full node (Startmining)"},"steps":[{"step":1,"name":"ASIC efficiency","formula":"efficiency (J/TH) = power (W) / hashrate (TH/s)","computation":"3645 / 270 = 13.5 J/TH","result":13.5,"unit":"J/TH"},{"step":2,"name":"Daily energy consumption","formula":"energy (kWh/day) = fleet power (W) / 1000 x 24 h","computation":"3645 / 1000 x 24 = 87.48 kWh/day","result":87.48,"unit":"kWh/day"},{"step":3,"name":"Daily electricity cost","formula":"cost ($/day) = energy (kWh/day) x electricity price ($/kWh)","computation":"87.48 x 0.06 = $5.25/day","result":5.2488,"unit":"USD/day"},{"step":4,"name":"Daily gross revenue","formula":"revenue ($/day) = fleet hashrate (PH/s) x hashprice ($/PH/day)","computation":"0.27 x 36.01 = $9.72/day","result":9.7227,"unit":"USD/day"},{"step":5,"name":"Pool fee","formula":"pool fee ($/day) = gross revenue x pool fee rate","computation":"9.72 x 0.02 = $0.19/day","result":0.1945,"unit":"USD/day"},{"step":6,"name":"Daily net profit","formula":"profit ($/day) = gross revenue - pool fee - electricity cost","computation":"9.72 - 0.19 - 5.25 = $4.28/day","result":4.2794,"unit":"USD/day"},{"step":7,"name":"Breakeven electricity price","formula":"breakeven ($/kWh) = (gross revenue - pool fee) / daily energy (kWh)","computation":"(9.72 - 0.19) / 87.48 = $0.1089/kWh","result":0.1089,"unit":"USD/kWh"}],"results":{"efficiency_j_th":13.5,"daily":{"revenue_usd":9.7227,"pool_fee_usd":0.1945,"electricity_cost_usd":5.2488,"profit_usd":4.2794,"btc_mined":0.00012122},"monthly":{"revenue_usd":295.73,"electricity_cost_usd":159.65,"profit_usd":130.17,"btc_mined":0.00368702},"breakeven_electricity_usd_kwh":0.1089,"margin_pct":44,"profitable":true},"caveats":["Static snapshot at current difficulty and BTC price. Network difficulty historically grows, so BTC revenue per TH declines over time — use the backtest and Monte Carlo tools for multi-month projections.","Excludes CAPEX (ASIC purchase), hosting fees beyond electricity, cooling overhead, and resale value.","Monthly figures use 30.4167 days/month (730 h), not 30.","Data licence CC BY 4.0 — attribution required: Startmining (https://pro.startmining.io)."],"links":{"interactive_calculator":"https://pro.startmining.io/calculator","glossary_hashprice":"https://pro.startmining.io/glossary#hashprice","api_docs":"https://pro.startmining.io/developers"}}