Bitcoin Halving Calculator

Estimate mining profit before and after a Bitcoin halving event. The calculator uses block reward, network difficulty, hash rate, power draw, and electricity cost to show how the reward cut affects daily profit. This page also keeps the formula, examples, FAQs, and references close by so you can check the result with confidence.

What This Bitcoin Halving Calculator Helps You Do

When the block reward halves, mining revenue usually drops almost immediately unless BTC price, difficulty, or hardware efficiency improve enough to offset it. Review the formula and examples below if you want to see how the result is derived.

This page is meant to give you a fast answer, but it also helps you double-check the math before you make a decision. Start with the inputs that you already know, run the calculation, and then compare the output with the formula, examples, and FAQs below so you can see whether the answer fits the situation you are modeling.

If the result looks off, the usual causes are a unit mismatch, a missing decimal, the wrong scenario, or a value that needs to be entered as a rate instead of a total. The notes on this page are designed to make those checks easy without forcing you to leave the calculator and search for context elsewhere.

  • Use the calculator first for a quick estimate.
  • Use the formula to understand how the result is built.
  • Use the examples to compare common use cases.
  • Use the references when the answer depends on a standard or assumption.

Common Checks

A quick result is useful, but the best result is one that still makes sense when you look at it a second time. If you are comparing scenarios, try changing one input at a time so you can see which variable has the biggest impact on the final answer. That makes it much easier to spot whether the calculation matches your expectations.

It also helps to keep the context of the problem in mind. A calculator can tell you the math, but you still need to decide whether the input represents a total, a rate, an average, or a category-specific assumption. When in doubt, start with a simple example from the page and scale up from there.

  • Check that every unit matches the rest of the problem.
  • Keep rates, totals, and averages separate.
  • Adjust one variable at a time when testing scenarios.
  • Use the smallest realistic input first, then scale upward.

Scenario Planning

This calculator is especially useful when you want a quick answer before you commit time, money, or effort. Try one baseline input set, then change a single number and compare the result so you can see how sensitive the answer is to that variable.

That makes the page useful for more than just arithmetic. It becomes a small decision aid that helps you compare options, test assumptions, and explain the final number with confidence when you need to share it with someone else.

TH/s
W
$/kWh
$
T

Result

--

Quick Answer: When the block reward halves, mining revenue usually drops almost immediately unless BTC price, difficulty, or hardware efficiency improve enough to offset it. Review the formula and examples below if you want to see how the result is derived.

How to Calculate Bitcoin Halving Calculator

  1. Enter the mining setup: Use your hash rate, power draw, and electricity price.
  2. Choose the reward phase: Select whether you want the pre-halving or post-halving scenario.
  3. Read the profit: The result shows daily profit and the related revenue and cost breakdown.

Bitcoin Halving Calculator Formula

Daily profit = BTC mined × BTC price - electricity cost
Variable Meaning Unit
Hash rate Mining speed in terahashes per second TH/s
Network difficulty Relative network difficulty T
Block reward BTC reward per block BTC

Worked Examples

USA - Efficient miner before halving
  • Hash rate: 100 TH/s
  • Power consumption: 3000 W
  • Electricity cost: $0.12/kWh
  • Bitcoin price: $95,000
  • Network difficulty: 95 T

Result: -$2.35

The pre-halving reward is still below the power cost in this simplified scenario.

UK - Same rig after halving
  • Hash rate: 100 TH/s
  • Power consumption: 3000 W
  • Electricity cost: £0.18/kWh
  • Bitcoin price: $95,000
  • Network difficulty: 95 T

Result: -£9.82

A lower block reward can push a marginal mining setup further into loss territory.

EU - Higher price environment
  • Hash rate: 140 TH/s
  • Power consumption: 3200 W
  • Electricity cost: €0.14/kWh
  • Bitcoin price: €120,000
  • Network difficulty: 90 T

Result: €0.98

Higher BTC price can almost offset the reward cut for a more efficient rig.

Halving checkpoints

How the reward schedule changes.

Range Meaning Action
Negative profit Power cost is higher than revenue Reduce electricity cost, upgrade hardware, or wait for a better market.
Low profit Marginal mining return Check whether difficulty or price assumptions are outdated.
Positive profit Revenue exceeds electricity cost Use this as a starting point for ROI planning.
How the reward schedule changes.
Phase Block reward Notes
Pre-halving 3.125 BTC Current reward level
Post-halving 1.5625 BTC Reward after the next halving
Long-term Keeps halving Block subsidy continues to fall

Frequently Asked Questions

The block reward is cut in half, so miners earn fewer newly created bitcoins for each block they find.

If the BTC price does not rise enough to offset the smaller reward, mining revenue drops while electricity costs stay the same.

No. It is a mining profit estimator that helps you see how the reward change affects revenue.
Planning note: Mining profitability changes quickly as price and difficulty move.

References

Last reviewed: March 2026